Luyện nói tiếng Anh bằng Shadowing qua video: ALL OF BUSINESS Explained in 20 Minutes
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You're a human.
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You want stuff.
Bạn muốn có những thứ đó.
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A phone, a coffee, maybe a slightly nicer car than your neighbors.
Một chiếc điện thoại, một ly cà phê, có lẽ là một chiếc xe hơi đẹp hơn một chút so với xe của hàng xóm.
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But here's the problem.
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Someone has to make that stuff.
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Someone has to sell it.
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Someone has to convince you to buy it instead of literally anything else.
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That's business.
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Business is the engine that turns ideas into products, products into money, and money into more products.
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It's how the world works.
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It's why you have an iPhone, why Amazon delivers to your door in 24 hours, and why there are 47 different types of bottled water at your local shop.
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Today, we're explaining all of it.
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Revenue, profit, marketing, business models, operations, the whole thing, in 20 minutes.
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Let's go.
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At its core, business is simple.
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Create something of value, sell it for more than it costs to make, keep the difference.
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That difference is called profit, and profit is the only reason businesses exist.
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A business without profit is a charity, or a hobby, or bankrupt.
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Every business, no matter how big or small, follows the same basic formula.
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Revenue minus costs equals profit.
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Revenue is the total money coming in from sales, also called top line.
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Costs are everything you spend to run the business.
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Materials, labor, rent, marketing, taxes, all of it.
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Profit is what's left, also called bottom line or net income.
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Sounds simple, right?
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It's not, because there are a million ways to generate revenue and a million ways to hemorrhage costs.
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Let's break it down.
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Revenue is how much money a business makes from selling goods or services.
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Not profit, just total sales.
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Apple made $391 billion in revenue in 2024.
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That's not profit.
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That's just how much money flowed into Apple from selling iPhones, Macs, iPads, and services.
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Amazon made $575 billion in revenue in 2023.
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Again, not profit, just total sales.
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Now, businesses generate revenue in different ways depending on their business model.
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Business model number one, B2C, business to consumer.
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This is when a business sells directly to you, the individual customer.
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Examples, Apple, Amazon, Netflix, your local coffee shop.
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Characteristics, shorter sales cycles, you buy quickly, lower average order values, you're not spending millions,
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relies heavily on marketing and brand.
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Business Model Number 2, B2B, Business to Business.
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This is when a business sells to another business, not individuals.
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Salesforce, Microsoft Azure, Boeing selling planes to airlines.
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Longer sales cycles, months or years.
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Higher average order values.
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Contracts worth thousands or millions.
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Relationship driven, requires sales teams.
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Business Model 3, Subscription Model.
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This is when customers pay a recurring fee for continued access to a product
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or service examples Netflix $15 per month Spotify SaaS companies like Adobe
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Creative Cloud why it's powerful predictable recurring revenue you know how
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much money is coming in every month subscription businesses grew five
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times faster than the S&P 500 over the last decade business
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model number four marketplace model the business doesn't sell products it connects buyers and sellers and takes a cut.
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eBay, Etsy, Airbnb, Uber.
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Commission fees, usually 10-30% per transaction, plus advertising.
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Business model number five.
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Freemium model.
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Give the basic product away for free.
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Charge for premium features.
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Spotify, free with ads, premium without.
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LinkedIn, in Dropbox.
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The goal, get millions of free users.
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Convert 2% to 5% to paid.
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That's enough to be profitable.
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Business model number six, direct to consumer or D2C.
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Skip the middleman.
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Sell directly to customers online.
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Examples?
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Warby Parker for glasses, Casper for mattresses, Dollar Shave Club.
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Advantage.
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Higher profit margins because you're not giving a cut to retailers.
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Revenue is sexy, costs are boring, but costs are what kill most businesses.
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There are two types of costs.
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Number one, cost of goods sold or COGS.
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The direct costs of making your product.
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For a t-shirt company, fabric, printing, labor to sew it.
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For a software company, server costs, hosting.
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For a restaurant, food, ingredients.
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The lower your COGS, the higher your gross profit margin.
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Number two, operating expenses or OPEX.
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Everything else, rent, salaries, marketing, utilities, software, taxes.
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Even if you sell nothing, these costs exist.
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Fixed costs stay the same no matter how much you sell.
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Rent, salaries.
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costs change based on sales volume.
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Shipping.
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Materials.
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Revenue means nothing if you're not keeping any of it.
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That's where profit margins come in.
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Gross profit margin.
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Formula.
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Revenue minus KEOGS divided by revenue times 100.
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This tells you how much money is left after you've paid for the direct costs of making your product.
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Example.
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You sell a phone for $1,000.
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It costs $400 to make.
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Gross profit equals $600.
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Gross margin equals 60%.
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Industry benchmarks, software and SaaS, 70 to 90%.
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Very low COGS.
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Retail, 20 to 50%.
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Restaurants, 60 to 70%.
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Manufacturing, 20 to 40%.
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Operating profit margin.
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Formula.
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Operating income divided by revenue times 100.
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This is gross profit minus operating expenses.
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It shows how efficiently you run the business.
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Example.
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Apple's operating margin is around 30%.
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For every $100 in revenue, $30 is operating profit.
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Net profit margin.
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Formula.
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Net income divided by revenue, times 100.
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This is the bottom line.
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After all costs, including taxes and interest, what's left?
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Industry averages, tech and software, 15 to 25%.
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Retail, 2 to 5%.
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Restaurants, 3 to 6%.
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Pharmaceuticals, 20 to 30%.
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Apple's net profit margin in 2024, around 24%.
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They made $94 billion in net profit on $391 billion in revenue.
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Amazon's net profit margin, around 3%.
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They made $30 billion in profit on $575 billion in revenue.
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Why the difference?
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Amazon reinvests almost everything into growth.
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Apple focuses on profitability.
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You can have the best product in the world.
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If nobody knows about it, you'll fail.
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Enter the four P's of marketing.
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Number one, product.
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What are you selling?
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What problem does it solve?
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Your product must fulfill a need or desire.
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Example, the iPhone wasn't the first smartphone, but it was the first to combine a phone, iPod, and internet device in one seamless package.
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That was the value proposition.
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Number two, price.
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What should you charge?
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Too high and no one buys too low and you seem cheap
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or go bankrupt pricing strategies cost plus pricing add a markup
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to your costs value-based pricing charge what customers are willing to pay Apple does this competitive pricing match or undercut competitors.
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Dynamic pricing, change prices based on demand.
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Uber, airlines.
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Stat, companies using dynamic pricing saw revenue increase by 5% on average, according to McKinsey.
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Number three, place.
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Where do customers buy your product?
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Physical stores, Apple stores, Walmart, e-commerce, Amazon, your own website.
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Marketplaces, eBay, Etsy.
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Direct to consumer, skip retailers, sell online.
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Place affects profit margins.
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Selling through a retailer means giving them 30 to 50 percent of the sale price.
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Number four, promotion.
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How do you tell people about your product?
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Traditional marketing, TV ads, billboards, print ads, digital marketing, 60 percent of all marketing in 2025.
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Social media ads, Instagram, Facebook, TikTok, Google ads, pay-per-click.
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Content Marketing Blogs Videos Influencer Partnerships Email Marketing Dollar Shave Club launched with a single viral YouTube video.
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Cost to make $4,500 12,000 orders in 48 hours and a $1 billion acquisition by Unilever.
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Marketing gets customers.
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Operations delivers the product.
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Supply Chain The process of getting raw materials, turning them into products, and delivering them to customers.
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Example A t-shirt company supply chain Cotton grown in India Fabric manufactured in Bangladesh
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Shirts printed in Vietnam Shipped to warehouses in the U.S.
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Delivered to customers Every step costs money The more efficient your supply chain, the higher your profit.
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Amazon's advantage They've built the most efficient supply chain in history.
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Warehouses everywhere.
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Same-day delivery.
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They've turned logistics into a competitive weapon.
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Inventory management.
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Too much inventory equals money tied up in unsold products.
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Too little inventory equals you can't fulfill orders, lost sales.
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Just-in-time inventory.
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Only order what you need when you need it.
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Pioneered by Toyota.
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Reduces waste.
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Customer acquisition cost, or CAAC.
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How much does it cost to get one new customer?
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Formula Total marketing spend divided by number of new customers.
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Example You spend $10,000 on ads and get 200 customers.
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CAC equals $50.
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Lifetime value, or LTV How much money does one customer generate over their entire relationship with your business?
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Formula Average purchase value times number of purchases per year times average customer lifespan.
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Example A Netflix subscriber pays $15 per month and stays for 3 years.
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LTV equals $15 times 12 times 3 equals $540.
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The golden rule, LTV must be higher than CAC.
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Ideally, LTV should be 3 times CAC or more.
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If it costs you $50 to acquire a customer, they should generate at least $150 in profit over their lifetime.
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Every business starts small.
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The winners figure out how to scale.
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Organic growth.
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Growing by selling more to existing customers or attracting new ones through marketing.
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Sustainable.
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No debt required.
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Slow.
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Funding and investment.
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Taking money from investors.
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Venture capital.
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Private equity to grow faster.
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Uber raised $24 billion from investors before going public.
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They used that money to expand globally and undercut competitors.
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You give up ownership, equity, in exchange for cash.
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Acquisitions.
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Buy other companies to grow faster.
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Example, Facebook bought Instagram for $1 billion in 2012.
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Instagram now generates over $50 billion in annual revenue for Meta.
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Franchising, let other people open locations of your business.
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They pay you a fee.
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Example, McDonald's has 40,000 locations worldwide.
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95% are franchises.
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McDonald's doesn't run them, franchisees do.
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McDonald's just collects fees and keeps the brand consistent.
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Let's see this in action with two of the biggest companies on earth.
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Apple.
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Revenue in 2024, $391 billion.
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Net profit, $94 billion.
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Net margin, 24%.
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Business model, B2C premium pricing, direct to consumer through Apple stores and website, plus retail partnerships.
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Key revenue streams.
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iPhone, $200 billion, 51% of revenue.
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Services, App Store, iCloud, Apple Music, $96 billion, 25%.
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Mac, iPad, Wearables, $95 billion, 24%.
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Why they're successful.
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Strong brand loyalty.
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High margins from premium pricing.
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Ecosystem lock-in.
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Once you have an iPhone, you buy AirPods, Apple Watch, iCloud, and more.
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Amazon.
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Revenue in 2023, $575 billion.
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Net profit, $30 billion.
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Net margin, around 5%.
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Business model, marketplace for third-party sellers, B2C direct sales, subscription through Amazon Prime,
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B2B through AWS Cloud Services.
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Key revenue streams, e-commerce, $390 billion dollars.
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Amazon Web Services or AWS, 90 billion dollars.
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Advertising, 50 billion dollars.
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Subscriptions through Prime, 40 billion dollars.
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Why they're successful.
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Reinvest everything into growth, warehouses, technology, logistics.
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AWS is the most profitable division with 30 to 40 percent margins.
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Prime creates recurring revenue and customer lock-in.
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So, what have we learned?
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Business is about creating value, selling it for more than it costs, and keeping the difference.
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That's profit.
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Revenue comes from selling products or services, and there are dozens of business models.
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B2C, B2B, subscriptions, marketplaces, freemium D2C.
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Profit margins tell you if you're actually making money.
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Gross margin, operating margin, net margin, each one tells a different story.
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Marketing gets customers through the four Ps.
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Product, price, place, promotion.
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Operations keeps the machine running.
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Supply chains, inventory, customer acquisition.
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Scaling happens through organic growth, funding, acquisitions, or franchising.
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And the biggest companies in the world, Apple, Amazon, Google, all follow these same principles.
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They just do it at massive scale.
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Business isn't magic.
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It's math, psychology, and execution.
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Now you know how it all works.
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That's business.
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All of it.
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In 20 minutes.
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If you got value from this, hit that subscribe button.
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We're breaking down complex topics every week.
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Economics, psychology, history, all of it.
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Drop a comment.
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What topic should we explain next?
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Thanks for watching.
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See you in the next one.
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Từ vựng và ghi chú luyện nói cho bài học này
Video này có 267 câu và 1875 từ để luyện shadowing. Phần lời nói dài 15:43. Người nói giữ tốc độ đều, khoảng 119 từ mỗi phút, vừa sức để nói đuổi theo. Chỉ 79% số từ nằm trong 3.000 từ tiếng Anh thông dụng nhất, nên từ vựng khá khó.
Từ vựng quan trọng trong video
15 từ đáng học trong video, kèm phiên âm và nghĩa:
| Từ | Phiên âm | Nghĩa |
|---|---|---|
| formula danh từ | /ˈfɔː.mjʊ.lə/ | công thức |
| generate động từ | /ˈd͡ʒɛn.ə.ɹeɪt/ | sinh ra, gây ra |
| divide động từ | /dɪˈvaɪd/ | chia |
| warehouse danh từ | /ˈwɛə(ɹ)haʊs/ | kho hàng, kho |
| minus | /ˈmaɪ.nəs/ | trừ |
| topic danh từ | /ˈtɑpɪk/ | chủ đề |
| partnership danh từ | /ˈpɑɹtnɚʃɪp/ | công ty hợp danh |
| organic tính từ | /ɔːˈɡænɪk/ | hữu cơ |
| commerce danh từ | /ˈkɑ.mɚs/ | sự buôn bán, thương mại |
| salary danh từ | /ˈsæləɹi/ | lương |
| psychology danh từ | /saɪˈkɑ.lə.d͡ʒi/ | tâm lý học |
| equity danh từ | /ˈɛk.wɪ.ti/ | sự bình đẳng |
| airline danh từ | /ˈɛɹˌlaɪn/ | công ty hàng không, hàng không |
| seller danh từ | /ˈsɛlɚ/ | người bán |
| investor danh từ | /ɪnˈvɛs.tə(ɹ)/ | người đầu tư |
Cụm động từ bạn sẽ nghe
| Từ | Nghĩa |
|---|---|
| break down động từ | hỏng, hỏng hóc |
| give up động từ | đầu hàng |
Ngữ pháp trong video
Những cấu trúc người nói dùng nhiều nhất, kèm đúng cụm từ trong video:
| Cấu trúc | Trong video |
|---|---|
| Thì hiện tại hoàn thành have/has + quá khứ phân từ — việc đã xảy ra nhưng còn liên quan đến hiện tại | you've paid · They've built · They've turned |
| Câu bị động be + quá khứ phân từ — nhấn vào việc xảy ra, không phải người làm | is called · is left |
Phát âm cần chú ý
Người nói dùng 18 dạng rút gọn, ví dụ you're, doesn't, they're. Hãy nói theo dạng ngắn đúng như bạn nghe.
- Âm “sh” và “zh”: acquisition /ˌæk.wɪˈzɪʃ.ən/, subscription /səbˈskɹɪpʃən/, partnership /ˈpɑɹtnɚʃɪp/, efficient /ɪˈfɪʃənt/, promotion /pɹəˈmoʊʃn̩/
- Từ dài — đặt trọng âm cho đúng: acquisition /ˌæk.wɪˈzɪʃ.ən/, psychology /saɪˈkɑ.lə.d͡ʒi/, competitor /kəmˈpɛt.ɪ.tɚ/, economics /ˌiːkəˈnɒmɪks/, execution /ˌɛk.sɪˈkjuː.ʃən/
Cách luyện với video này
- Nghe hết video một lần, chưa cần nói, và ghi lại những từ bạn chưa biết.
- Nói đuổi từng câu ở tốc độ bình thường, lặp lại mỗi câu đến khi nhịp của bạn khớp với người nói.
- Ghi âm giọng mình rồi so với bản gốc, chú ý các từ như formula, generate, divide.
Phương Pháp Shadowing Là Gì?
Shadowing là kỹ thuật học ngôn ngữ có cơ sở khoa học, ban đầu được phát triển cho chương trình đào tạo phiên dịch viên chuyên nghiệp và được phổ biến rộng rãi bởi nhà đa ngôn ngữ học Dr. Alexander Arguelles. Nguyên lý cốt lõi đơn giản nhưng cực kỳ hiệu quả: bạn nghe tiếng Anh của người bản xứ và lặp lại to ngay lập tức — như một "cái bóng" (shadow) đuổi theo người nói với độ trễ chỉ 1–2 giây. Khác với luyện ngữ pháp hay học từ vựng bị động, Shadowing buộc não bộ và cơ miệng phải đồng thời xử lý và tái tạo ngôn ngữ thực tế. Các nghiên cứu khoa học xác nhận phương pháp này cải thiện đáng kể phát âm, ngữ điệu, nhịp điệu, nối âm, kỹ năng nghe và độ lưu loát khi nói — đặc biệt hiệu quả cho người luyện IELTS Speaking và muốn giao tiếp tiếng Anh tự nhiên như người bản ngữ.