ฝึกพูดภาษาอังกฤษด้วยเทคนิค Shadowing จากวิดีโอ: ALL OF BUSINESS Explained in 20 Minutes

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You're a human.

You want stuff.

A phone, a coffee, maybe a slightly nicer car than your neighbors.

But here's the problem.

Someone has to make that stuff.

Someone has to sell it.

Someone has to convince you to buy it instead of literally anything else.

That's business.

Business is the engine that turns ideas into products, products into money, and money into more products.

It's how the world works.

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.

Today, we're explaining all of it.

Revenue, profit, marketing, business models, operations, the whole thing, in 20 minutes.

Let's go.

At its core, business is simple.

Create something of value, sell it for more than it costs to make, keep the difference.

That difference is called profit, and profit is the only reason businesses exist.

A business without profit is a charity, or a hobby, or bankrupt.

Every business, no matter how big or small, follows the same basic formula.

Revenue minus costs equals profit.

Revenue is the total money coming in from sales, also called top line.

Costs are everything you spend to run the business.

Materials, labor, rent, marketing, taxes, all of it.

Profit is what's left, also called bottom line or net income.

Sounds simple, right?

It's not, because there are a million ways to generate revenue and a million ways to hemorrhage costs.

Let's break it down.

Revenue is how much money a business makes from selling goods or services.

Not profit, just total sales.

Apple made $391 billion in revenue in 2024.

That's not profit.

That's just how much money flowed into Apple from selling iPhones, Macs, iPads, and services.

Amazon made $575 billion in revenue in 2023.

Again, not profit, just total sales.

Now, businesses generate revenue in different ways depending on their business model.

Business model number one, B2C, business to consumer.

This is when a business sells directly to you, the individual customer.

Examples, Apple, Amazon, Netflix, your local coffee shop.

Characteristics, shorter sales cycles, you buy quickly, lower average order values, you're not spending millions,

relies heavily on marketing and brand.

Business Model Number 2, B2B, Business to Business.

This is when a business sells to another business, not individuals.

Salesforce, Microsoft Azure, Boeing selling planes to airlines.

Longer sales cycles, months or years.

Higher average order values.

Contracts worth thousands or millions.

Relationship driven, requires sales teams.

Business Model 3, Subscription Model.

This is when customers pay a recurring fee for continued access to a product

or service examples Netflix $15 per month Spotify SaaS companies like Adobe

Creative Cloud why it's powerful predictable recurring revenue you know how

much money is coming in every month subscription businesses grew five

times faster than the S&P 500 over the last decade business

model number four marketplace model the business doesn't sell products it connects buyers and sellers and takes a cut.

eBay, Etsy, Airbnb, Uber.

Commission fees, usually 10-30% per transaction, plus advertising.

Business model number five.

Freemium model.

Give the basic product away for free.

Charge for premium features.

Spotify, free with ads, premium without.

LinkedIn, in Dropbox.

The goal, get millions of free users.

Convert 2% to 5% to paid.

That's enough to be profitable.

Business model number six, direct to consumer or D2C.

Skip the middleman.

Sell directly to customers online.

Examples?

Warby Parker for glasses, Casper for mattresses, Dollar Shave Club.

Advantage.

Higher profit margins because you're not giving a cut to retailers.

Revenue is sexy, costs are boring, but costs are what kill most businesses.

There are two types of costs.

Number one, cost of goods sold or COGS.

The direct costs of making your product.

For a t-shirt company, fabric, printing, labor to sew it.

For a software company, server costs, hosting.

For a restaurant, food, ingredients.

The lower your COGS, the higher your gross profit margin.

Number two, operating expenses or OPEX.

Everything else, rent, salaries, marketing, utilities, software, taxes.

Even if you sell nothing, these costs exist.

Fixed costs stay the same no matter how much you sell.

Rent, salaries.

costs change based on sales volume.

Shipping.

Materials.

Revenue means nothing if you're not keeping any of it.

That's where profit margins come in.

Gross profit margin.

Formula.

Revenue minus KEOGS divided by revenue times 100.

This tells you how much money is left after you've paid for the direct costs of making your product.

Example.

You sell a phone for $1,000.

It costs $400 to make.

Gross profit equals $600.

Gross margin equals 60%.

100

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.

260

In 20 minutes.

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If you got value from this, hit that subscribe button.

262

We're breaking down complex topics every week.

263

Economics, psychology, history, all of it.

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Drop a comment.

265

What topic should we explain next?

266

Thanks for watching.

267

See you in the next one.

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คำศัพท์และข้อสังเกตด้านการพูดสำหรับบทเรียนนี้

วิดีโอนี้มี 267 ประโยค และ 1875 คำ สำหรับฝึกพูดตาม ช่วงที่มีเสียงพูดยาว 15:43 ผู้พูดพูดด้วยความเร็วสม่ำเสมอ ประมาณ 119 คำต่อนาที เหมาะกับการฝึกพูดตาม มีเพียง 79% ของคำที่อยู่ใน 3,000 คำที่ใช้บ่อยที่สุดในภาษาอังกฤษ คำศัพท์จึงค่อนข้างยาก

คำศัพท์สำคัญในวิดีโอนี้

คำที่ควรเรียนรู้ 15 คำจากวิดีโอ พร้อมคำอ่านและความหมาย:

คำศัพท์	คำอ่าน	ความหมาย
formula คำนาม	/ˈfɔː.mjʊ.lə/	สูตร
warehouse คำนาม	/ˈwɛə(ɹ)haʊs/	คลังสินค้า, โกดัง
minus	/ˈmaɪ.nəs/	ลบ
topic คำนาม	/ˈtɑpɪk/	หัวข้อ, กระทู้
promotion คำนาม	/pɹəˈmoʊʃn̩/	การเลื่อนตำแหน่ง
organic คำคุณศัพท์	/ɔːˈɡænɪk/	อินทรีย์
commerce คำนาม	/ˈkɑ.mɚs/	พาณิชย์, ธุรกิจ
salary คำนาม	/ˈsæləɹi/	เงินเดือน, ค่าจ้าง
psychology คำนาม	/saɪˈkɑ.lə.d͡ʒi/	จิตวิทยา
airline คำนาม	/ˈɛɹˌlaɪn/	สายการบิน
seller คำนาม	/ˈsɛlɚ/	ผู้ขาย
investor คำนาม	/ɪnˈvɛs.tə(ɹ)/	ผู้ลงทุน
logistics คำนาม	/ləˈd͡ʒɪstɪks/	โลจิสติกส์
package คำนาม	/ˈpæk.ɪd͡ʒ/	หีบห่อ, ห่อ
server คำนาม	/ˈsɝvɚ/	เซิร์ฟเวอร์

กริยาวลีที่คุณจะได้ยิน

คำศัพท์	ความหมาย
give up คำกริยา	ยอมแพ้

ไวยากรณ์ในวิดีโอนี้

โครงสร้างที่ผู้พูดใช้บ่อยที่สุด พร้อมคำพูดจริงจากวิดีโอ:

โครงสร้าง	ในวิดีโอ
Present perfect have/has + กริยาช่อง 3 — เหตุการณ์ในอดีตที่ยังเกี่ยวข้องกับปัจจุบัน	you've paid · They've built · They've turned
Passive voice be + กริยาช่อง 3 — เน้นสิ่งที่เกิดขึ้น ไม่ใช่ผู้กระทำ	is called · is left

การออกเสียงที่ควรระวัง

ผู้พูดใช้รูปย่อและรูปลดเสียง 18 ครั้ง เช่น you're, doesn't, they're ให้พูดแบบสั้นตามที่ได้ยิน

เสียง “sh” และ “zh”: acquisition /ˌæk.wɪˈzɪʃ.ən/, subscription /səbˈskɹɪpʃən/, partnership /ˈpɑɹtnɚʃɪp/, efficient /ɪˈfɪʃənt/, promotion /pɹəˈmoʊʃn̩/
คำยาว — ลงเสียงหนักให้ถูกพยางค์: acquisition /ˌæk.wɪˈzɪʃ.ən/, psychology /saɪˈkɑ.lə.d͡ʒi/, competitor /kəmˈpɛt.ɪ.tɚ/, economics /ˌiːkəˈnɒmɪks/, execution /ˌɛk.sɪˈkjuː.ʃən/

วิธีฝึกกับวิดีโอนี้

ฟังวิดีโอให้จบหนึ่งรอบโดยยังไม่ต้องพูด แล้วจดคำที่ยังไม่รู้จัก
พูดตามทีละประโยคด้วยความเร็วปกติ ทำซ้ำแต่ละประโยคจนจังหวะของคุณตรงกับผู้พูด
อัดเสียงตัวเองแล้วเทียบกับต้นฉบับ โดยสังเกตคำอย่าง formula, warehouse, minus เป็นพิเศษ

เทคนิค Shadowing คืออะไร?

Shadowing เป็นเทคนิคการเรียนรู้ภาษาที่ได้รับการรับรองทางวิทยาศาสตร์ พัฒนาขึ้นสำหรับการฝึกนักแปลมืออาชีพ วิธีการนี้เรียบง่ายแต่ทรงพลัง: คุณฟังเสียงภาษาอังกฤษจากเจ้าของภาษาและพูดตามทันที — เหมือนเงาที่ตามผู้พูดด้วยช่วงเวลาห่าง 1-2 วินาที การวิจัยแสดงว่าเทคนิคนี้ปรับปรุงความแม่นยำในการออกเสียง ทำนองเสียง จังหวะ การเชื่อมเสียง การฟังเข้าใจ และความคล่องแคล่วในการพูดได้อย่างมีนัยสำคัญ

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ฝึกพูดภาษาอังกฤษด้วยเทคนิค Shadowing จากวิดีโอ: ALL OF BUSINESS Explained in 20 Minutes

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เทคนิค Shadowing คืออะไร?