跟读练习: Lymphoma - 通过视频学习英语口语

In this video, I will explain almost everything that you need to know about lymphomas.

So, as a brief overview, lymphomas are a heterogeneous group of malignancies that arise from clonal perforation of B cells,

T cells, and K cells at various stages of maturation.

Not to make it sound stupid or to dumb it down too much, but lymphocyte cancers equal lymphomas.

And so, if you understand the basic immunology and physiology of a lymphocyte,

it makes understanding lymphomas much more easy to understand.

So, I would encourage you, before you view this video, make sure that you understand the basics about all your different types of lymphocytes.

Now, lymphomas may arise from lymph nodes or extranodal tissue.

Non-Hodgkin lymphomas are much more common than Hodgkin lymphoma.

And if this is your first time learning about lymphomas, settle down because we will talk about the difference and the different types of lymphomas that fall into different categories.

So don't worry about this distinction just yet.

Note though that lymphomas arise most commonly from chromosomal translocations and or associations with various infections and more on that to come.

So broadly, when we talk about lymphoma, we separate them into two categories.

One category shown on the left is Hodgkin lymphoma or HL.

The other category shown on the right is non-Hodgkin lymphoma or NHL.

And this distinction is made pretty much by the presence of something called a Reed-Sternberg cell.

So, if there's a Reed-Sternberg cell, you're dealing with a Hodgkin lymphoma.

If there's no Reed-Sternberg cell, and alternatively, if you're mostly looking at lymphoid cells, then you're dealing with a non-Hodgkin lymphoma.

Reed-Sternberg cells are very important to know what they look like.

You will see this image either on your in-class exams or on step one or level one.

These are large binucleate, sometimes referred to as,

quote, allied giant lymphocytes that have eosinophilic nuclei and a lot of cytoplasm.

So stare at this image, burn this image into your brain.

This is a Reed Sternberg cell.

You have to know what this looks like because if the test writer shows you this picture, you have to infer that you're dealing with a type of Hodgkin lymphoma.

So when it comes to Hodgkin lymphoma, there are both classical and non-classical subtypes of Hodgkin lymphoma.

When it comes to non-Hodgkin lymphoma, we generally separate these into B-cell and T-cell non-Hodgkin lymphoma.

Now I want to pause for a second.

If you're watching this video because you are taking USMLE or Comlex,

the majority, I I would say 90% or more of your questions will come from the right hand part of this slide.

You need to know the non-Hodgkin lymphoma.

The B-cell non-Hodgkin lymphomas include Burkitt lymphoma, diffuse large B-cell lymphoma, follicular lymphoma,

mantle cell lymphoma, marginal zone lymphoma, and primary CNS lymphoma.

The T-cell non-Hodgkin lymphoma includes adult T-cell lymphoma and mycosis fungoides.

If you're watching this video, again, solely because you want to do well on step one or level one, this is what you need to understand.

And I'm not even going to bother talking about the different types of Hodgkin lymphoma, although I will type them out for completeness sake.

So this video will focus on the right hand part, the non-Hodgkin lymphomas, because that is 90%,

if not more, of all of the questions that you'll get on step one or level one.

So, let's go through these one at a time.

We'll talk about all the different types of non-Hodgkin lymphomas, and then at the end of this video, I'll talk about the clinical presentation,

the difference between Hodgkin and non-Hodgkin clinically, and then some associated syndromes that you need to know for USMLE and COMLEX.

So we'll begin with Burkitt lymphoma.

This is more common in children and young adults.

It is due to a chromosomal translocation 814.

This is a reciprocal translocation where the CMYK gene on eight and the heavy chain IG locus on 14 are involved.

So what happens here is after this translocation, you have increased activity of CMYK,

which is a proto-oncogene that increases transcription factors, which increases transcription.

So you have an increase in aerobic glycolysis and subsequent cell growth.

And that's how this cancer forms.

You have increased cell growth.

Now, Burkitt lymphoma is divided into several subtypes.

You have endemic, sporadic, and immunodeficiency.

On your exam, the one that you want to know is endemic.

This is associated with EBV.

It occurs most often in Africa and South America.

It classically involves the maxillary and mandibular area.

And this occurs predominantly in areas where there is malaria.

And what happens here is that malaria decreases one's resistance to EBV, and therefore EBV is associated with Burkitt lymphoma.

Know for completeness sake, of course, that we have a sporadic subtype where the abdomen and pelvis is involved.

This actually is the most common subtype, but on your exam, chances are the exam writer is going to go after endemic, and I'll tell you why in just a moment.

And then lastly, there's an immunodeficiency subtype, which is associated with HIV and patients who are post-transplant.

Again, if you're just taking USMLE or Comlex, you got to know endemic.

And the reason you need to know that is because the maxillary

and mandibular involvement has a classical image that looks like this.

So if you see this image, you have to know Burkitt lymphoma.

This image equals Burkitt lymphoma.

So again, if you're looking at this slide, endemic, highest yield, second highest yield,

immunodeficiency, third highest yield, which interestingly enough happens to be the most common, but on exams, not that important.

So what I want you to take away so far, Burkitt lymphoma equals 814 translocation,

increased activity of CMYK, endemic subtype associated with EBV in areas of the world where malaria is present

because that decreases one's resistance to EBV.

And this image equals Burkitt lymphoma because this is the endemic subtype that involves the face.

Now histologically you're going to see something called a starry sky pattern and this has become quite a hot buzzword.

If you see starry sky, the answer is Burkitt lymphoma.

Now the description that you could see are tangible body-laden macrophages with phagocytized tumor cells that may or may not show up,

but starry sky is the buzzword that gets thrown around all the time.

So know that that equals Burkitt lymphoma.

Now there are two mnemonics that I can offer you that might help you on your exam.

When I think Burkitt lymphoma, I think Burk-8 lymphoma instead of Burk-it.

So Burk-it, Burk-8.

And that cues my brain that I'm dealing with an 814 chromosomal translocation because unfortunately,

sometimes the exam writer wants you to pick the chromosomal translocation associated with whatever lymphoma they're describing.

And because you have all of these translocations, as you'll see as I go through this video, it's kind of difficult to memorize.

Luckily, I have a mnemonic for almost all of these.

And then lastly, you can remember the E's with Burkitt lymphoma.

E for endemic, E associated with EBV, and E for eating, which reminds me of that facial involvement.

E, endemic, EBV, eating.

The most important thing from this slide again though is Burkate lymphoma, 8, 814, translocation.

Now let's talk about diffuse large B-cell lymphoma.

This is most common, this is the most common non-Hodgkin lymphoma in adults.

And this one is the one where you don't need to memorize a chromosomal translocation

because it's due to a mutation in BCL2, BCL8, and P53.

Now just recall, we won't go too deep into this, but recall that BCL2 is a proto-oncogene gene that is involved in apoptosis regulation.

BCL-6 is a transcriptional repressor that regulates cell maturation.

And P53 is a tumor suppressor gene.

So when you mutate these things, obviously, you're going to affect cell function, cell division, cell regulation.

And when you have that at an unchecked level, you get cancer.

And that's what you're dealing with here.

Now, luckily, there's not a whole lot you need to memorize for exams.

100

When I think DLBL for diffuse large B-cell lymphoma, DLBL, that kind of sounds like BCL.

101

There's a lot of L's and B's and it doesn't rhyme, but it almost rhymes.

102

DLBL, BCL.

103

And that just, you know, in my brain makes the association that with DLBL, we're dealing with things like BCL2 and BCL6.

104

And if you can take that one step further, perhaps you can memorize P53.

105

But if that doesn't seem worthwhile to memorize, you know, if you're cramped for brain space, or you're just like, dude,

106

I can't memorize anything that I don't 100% need to know that's super high yield, then just move right on to follicular lymphoma.

107

Follicular lymphoma is the most common low-grade B-cell lymphoma.

108

It is due to a chromosomal translocation between 14 and 18.

109

So you have the heavy chain IG on 14 and BCL2 on 18.

110

And what happens is when you translocate, then you have BCL2 increasing or overexpressing its product.

111

And when that happens, you have decreased apoptosis, which prolongs cell survival.

112

Anytime you pathologically prolong cell survival, you get subsequent malignant progression.

113

So that's follicular lymphoma.

114

Now, histologically, you need to know that there's going to be the presence of something called centricites.

115

These centricites have small cleaved nuclei.

116

Occasionally, they might really throw you a curveball and give you a centroblast.

117

Centroblasts are large lymphocytes, but do not have the cleaving.

118

So if you see either of these terminologies, centrocyte or centroblast, think follicular lymphoma.

119

If you see small cleaved nuclei, think follicular lymphoma.

120

Now, when I think of follicular lymphoma, the way that I've always memorized 14-18 translocation is follicular 14.

121

14 begins with F, follicular 14.

122

Keep it simple because this is the only translocation where the first number in the translocation is 14.

123

Now let's talk about mantle cell lymphoma.

124

This is most common in adult males, and this is due to a chromosomal translocation between 11 and 14.

125

Pause for a second.

126

I just told you in follicular lymphoma, no other translocation had 14 as the first number, but here you see 14 as the second number.

127

So just keep that straight in your brain.

128

This involves cyclin D1 on 11 and the heavy chain IG on 14.

129

When you increase the activity pathologically of cyclin D1,

130

you increase replication because you're essentially going through into S phase more than you should.

131

This increases cell proliferation, and we have pathological malignant progression.

132

Now, usually when it comes to mantle cell lymphoma,

133

this spreads pretty rapidly, so it unfortunately generally gets diagnosed when it's already reached an advanced stage.

134

But for USMLE or COMLEX, you really just need to know the chromosomal translocation, not a whole lot of other high yield details.

135

That's mantle cell lymphoma.

136

I have a mnemonic for you, but we'll come back to it after we talk about marginal zone lymphoma.

137

So marginal zone lymphoma is due to a chromosomal translocation between 11 and 18.

138

Now, occasionally they'll write out something after the 1118 translocation

139

and it might say q21 q21 don't worry about

140

that this is an 1118 translocation that's what you need to know

141

if you're studying for boards now marginal zone lymphoma is very high yield

142

because it is associated with autoimmune inflammation

143

and something called a gastric malt lymphoma now this confuses medical students

144

so let's just say what malt is malt m-a-l-t stands for mucosa associated lymphoid tissue

145

and basically in certain mucosal tissues there's this submucosal lining and

146

that that material is actually lymphoid it serves a lymph function

147

and so in this instance gastric malt lymphoma is a lymphoma specifically associated

148

with that mucosal associated lymphoid tissue in the stomach so

149

because of that it is highly associated with h pylori gastritis

150

so in patients who have h pylori infections

151

and h pylori gastritis there's some connection between that inflammation and

152

that malt tissue becoming cancerous

153

and the important thing to know is one there's the simple

154

association where gastric lymphoma is a type of marginal zone lymphoma and it's associated with H pylori, but what's high yield to know,

155

especially if you're taking step two, level two and beyond, is that this lymphoma actually may remit if the H pylori is treated.

156

So that's high yield for step two, level two, and beyond.

157

For step one, level one, just know that gastric malt lymphoma is a subtype of marginal zone lymphoma in

158

that mucosa-associated lymphoid tissue in the stomach connected somehow to H pylori inflammation.

159

As far as the autoimmune association goes, marginal zone lymphoma is associated with Hashimoto thyroiditis and Sjogren's syndrome.

160

So this is a really tricky opportunity where the test writer can start you off on a question

161

that maybe gives you labs or buzzwords that have to do with thyroiditis or Sjogren.

162

And then they'll ask you which of the following is the patient at increased risk for?

163

And the answer is going to be marginal zone lymphoma.

164

So you're going to have to connect lymphoma with these and more endocrine rheumatological diseases.

165

Now the mnemonic for both marginal and mantle, because if we go back to mantle,

166

mantle starts the chromosomal translocation starts with 11 and in marginal it also starts with 11.

167

These are the only two translocations that begin with 11.

168

And so what I want you to think about when you think about 11 is if you've ever seen stranger things.

169

There's a character named Eleven, and Eleven is played by Millie Bobby Brown.

170

Millie beginning with M, so both mantle and marginal begin with M.

171

Both mantle and marginal begin with Eleven in their translocation.

172

So I associate Millie the M in Millie Bobby Brown with the character that she plays Eleven and the two chromosomal translocations.

173

Now let's talk about primary CNS lymphoma.

174

And I want to point out that depending on the textbook

175

that you read or the lecturer that teaches you at your school,

176

this technically is a subtype of diffuse large B-cell lymphoma,

177

but it kind of gets carved out because it's its own thing.

178

So what you need to know for your exams is that primary CNS lymphoma is associated with EBV and HIV AIDS.

179

Now EBV infection may be required for pathogenesis in immunocompromised individuals.

180

So it's not like it's associated necessarily with one or the other.

181

It is highly associated with both EBV and HIV AIDS almost concurrently.

182

And what you see here is a neuropsychiatric presentation.

183

That is important to know.

184

What I think is even more high yield for USMLE or COMLEX is being able to do a differential diagnosis between toxoplasmosis,

185

CNS lymphoma, abscess, and metastasis.

186

And I've tried as best as I can to simplify this for you, but admittedly, it's not an exact science and the test writer is going to try to trick you.

187

But when it comes to looking at these differentials,

188

the reason that you need to know this is because these all cause ring enhancing lesions in the brain.

189

So you're going to be taking your exam.

190

They're going to give you the results of imaging, and there's going to be one or more ring enhancing lesions.

191

And then they're going to ask you which of the following is responsible for this presentation.

192

And all four of these things are going to be potential answer choices.

193

And so how you can think about this, and again, not an exact science, so this isn't a 100% way to get this correct.

194

But in general, you can think about someone's immunocompromised or not status and then other associations.

195

So with CNS lymphoma, chances are on the exam, the patient's going to be immunocompromised because again, it's associated with HIV AIDS.

196

There is a chance that they will give you a patient with autoimmune disease.

197

And if the test writer really wants you to pick CNS lymphoma, they're going to tell you that the patient was tried on treatment for toxoplasmosis,

198

but failed that treatment.

199

Some people think that when it's a solitary or single ring enhancing lesion, that the answer is CNS lymphoma.

200

And that's not really helpful on exams anymore because they can give you one and it could still be an answer choice.

201

That's not CNS lymphoma, or they could give you multiple and you just don't know.

202

Toxoplasmosis chances are on the exam, the patient will be immunocompromised because that's associated with HIV AIDS.

203

On the exam, if the test writer wants you to pick toxo,

204

they're very likely going to give you associated risk factors or exposures to things like cat feces, raw meat, or goat's milk.

205

So your classic buzzwords associated with toxo.

206

They don't have to, but generally they do.

207

If the test writer wants you to pick an abscess, you can't go by the immunostatus because the patient could be immunocompromised or immunocompetent,

208

what they will give you in most instances is

209

that the patient had a recent infection

210

and it's the entry of the pathogen through that infectious route that leads eventually to the abscess.

211

Lastly, for metastasis, chances are on the exam, the patient will be immunocompetent.

212

So they're not, they're very unlikely to have HIV AIDS on your exam.

213

And if If they want you to pick metastasis on the exam, they will either give you that there are multiple ring enhancing lesions.

214

Although again, solitary versus multiple doesn't really necessarily tell you metastasis, but metastasis is usually multiple lesions.

215

And usually they will either give you the cancer history or insinuate very strongly that the patient has a history of cancer.

216

So again, not a complete science, but as far as differentiating CNS lymphoma versus toxo versus abscess versus metastasis.

217

This is a very broad way to conceptualize this.

218

Now let's talk about mycosis fungoides.

219

So to be clear, we've talked about the B-cell lymphomas, and now we're moving into the few T-cell lymphomas that you need to know.

220

Mycosis fungoides is the most common low-grade T-cell lymphoma.

221

It involves malignant CD4 plus T-cell infiltration of the skin.

222

So because of that, the clinical presentation is pretty unique.

223

You see patches, plaques, and nodules.

224

So a lot of dermatological findings.

225

And what you will see described are cesare cells.

226

Now cesare cells, you see an image here, they have cerebriform nuclei.

227

That is a very hot buzzword.

228

Don't worry about the term cesare cell, no cerebriform nuclei.

229

You can also see So basically that is a fancy way of saying that in the epidermis,

230

there's aggregations of cells and those are called, I may be butchering the pronunciation here, potriae micro abscesses.

231

If mycosis fungoides involves the blood, it is termed Cesare syndrome.

232

So that is a leukemic form of mycosis fungoides.

233

So high yield to know that this T cell lymphoma has, it basically can be leukemia because it can involve the blood.

234

It can progress to that form.

235

Now let's wrap up by talking about adult T cell lymphoma.

236

So this is neoplastic proliferation of mature CD4 plus T cells.

237

What you need to know when it comes to adult T cell lymphoma are its associations with HTLV-1 and IV drug abuse.

238

That's really important to know.

239

On your exam, if the test writer is going to give you a vignette or a presentation with adult T cell lymphoma,

240

they'll give you either the HTLV-1 or a history of IV drug abuse, and then they'll give you some labs and clinical findings.

241

The labs will be an elevated lactate dehydrogenase, elevated calcium level, and all the symptoms that come with that,

242

hepatosplenomegaly, and of course, because we're dealing with lymphoma, likely they'll give you lymph adenopathy.

243

So know the elevated calcium and the elevated LDH.

244

Of course, know all of your symptoms of hypercalcemia, in particular, those lytic or punched out lesions.

245

Now, we've just gone through a number of different lymphomas this

246

is sort of the summary of how this looks clinically

247

so clinically you really can't distinguish hodgkin versus non-hodgkin lymphomas on the basis of symptoms

248

because generally these present with what are known as b symptoms

249

fever night sweats unintentional weight loss where you can differentiate these are what you see in age cells spread

250

and associations so in age Hodgkin lymphoma tends to be more bimodal

251

so young adults and those age 55

252

and older whereas non-Hodgkin lymphoma on your exam it's very likely the patient will be 55

253

or older but the risk increases with age the cells we already talked about really high yield to know

254

that Hodgkin you see Reed Sternberg cells non-Hodgkin you see lymphoid cells spread This is one

255

that can really help you get the answer correct

256

if the test writer describes clinical findings or physical exam findings or nodal findings.

257

And when I say nodal findings, I mean what lymph nodes are involved and where are they located on the body.

258

So in Hodgkin lymphoma, it's more localized.

259

The spread is contiguous, so it's kind of node to local node, and the prognosis is better.

260

In non-Hodgkin lymphoma, it tends to be more extranodal.

261

It's non-contiguous, so it's not really localized, and for these reasons, the prognosis is worse.

262

Associations, Hodgkin tends to be more associated with immunosuppression and EBV,

263

although clearly, we've talked about immunosuppression and EBV in non-Hodgkin, so this is one that you can't really go off this to get the answer correct.

264

In non-Hodgkin, we're dealing with chromosomal translocations, very high yield, as I pointed out, autoimmunity, and not only EBV,

265

but also things like HTLV1 and HIV.

266

This is your high yield clinical summary.

267

Now, I want to finish this video by talking about some associated clinical syndromes.

268

These include tumor lysis syndrome and superior vena cava syndrome.

269

And so on your exam, the test rater might give you findings of these syndromes because these syndromes are associated with lymphomas.

270

Now, to be clear, it's not just limited to lymphomas these findings, these syndromes are also associated with other malignancies,

271

but I'll include them here because they do tend to show up

272

and they can get lumped in with the big package of symptoms that you'll get on your exam.

273

So tumor lysis syndrome is a syndrome that occurs after cytotoxic tumor cell destruction.

274

So let's just simplify this.

275

You've got a tumor cell, the patient gets treated, the tumor cell explodes and it releases its intracellular components.

276

It is the release of those intracellular components that causes tumor lysis syndrome.

277

The big three are phosphate, potassium, and nucleic acids.

278

Now, with an increased phosphate, phosphate will bind up all the free calcium and cause calcium phosphate crystals.

279

With potassium, increased levels of potassium alter the resting membrane potential, which can cause cardiac arrhythmia.

280

And with nucleic acids, these get converted to uric acid, which causes hyperuricemia.

281

Now, what you'll see on your exam, of course, on the left here, we've got our lab findings.

282

And on the right, we have some associated clinical features.

283

On the left, we deal, like I said, increased levels of phosphate, increased potassium, increased nucleic acids,

284

and by extension, increased uric acid, and decreased free calcium.

285

Again, that phosphate binds up the calcium, so you actually get hypocalcemia if you're looking at labs.

286

This can present very heterogeneously, so it's not just these symptoms, but I've included the big six, so to say.

287

So you could see cardiac arrhythmias from your elevated potassium.

288

Because of your calcium, you could see tetany, trosteic sign, trousseau sign.

289

You could have seizures and because of various pathways that ultimately cause kidney injury,

290

right, hyperuricemia and calcium phosphate crystals, you get obstructive uropathy.

291

So these are things you want to look for on your exam.

292

Each of these clinical findings will have third order findings and third order symptoms.

293

So tumor lysis syndrome, it's really a big thing that they could go after on USMLE or COMLEX.

294

Lastly, we have superior vena cava syndrome.

295

So as the name implies, this is a syndrome that occurs when the SVC is blocked or congested because the malignancy,

296

the cancer is locally kind of either pushing on that area

297

or metastasizing to that area or involving the blood flow through that area.

298

And so what you see are symptoms where you have decreased flow in that region.

299

So things like upper extremity and facial edema, jugular venous distension, orthostatic hypotension.

300

You can get neurological symptoms, including headache, difficulty with vision,

301

altered mental status, and things like renal failure and a host of ENT symptoms.

302

If you're looking at this now, I think tumor lysis syndrome is a lot more high yield than SVC syndrome, but both of these, again,

303

can be associated with lymphoma and other malignancies.

304

So that was a pretty long one.

305

A lot of good information that I think you should know for your exams.

306

Know the chromosomal translocations.

307

Know what a Reed-Sternberg cell looks like.

308

Know some of the more buzzy words in there.

309

But that is lymphoma.

📺 同频道

Embryology of the Nervous System

IELTS PrepTOEFL PrepUniversity Students

✨ 推荐视频

125 句

Dr. Isabelle Ray-Coquard | What Has Changed in Clinical Practice for ovarian Cancer in 2025?

IELTS PrepTOEFL PrepUniversity Students

34 句

這部影片適合誰？

如果你正在準備醫學考試（比如USMLE或COMLEX），或是想深入了解淋巴瘤知識，這部影片會是很好的學習素材。它不僅講解專業知識，還能用簡單的表達讓複雜概念變得易懂，非常適合需要提升學術英語理解能力的人。同時，影片中的口語表達自然，也很適合拿來做「shadowspeaks」練習——跟讀模仿，既能學專業詞彙，又能提高英語發音。

值得借鑑的詞彙與短語

heterogeneous group：異質性群體。影片用來描述淋巴瘤的多樣性，類似表達還能說「diverse group」。
clonal perforation：克隆增殖。醫學領域常用術語，記住「clonal」表示「克隆的」，「perforation」在這裡指「增殖」。
dumb it down：簡化解釋。口語中很實用的短語，比如「I’ll dumb it down so you can understand」（我會簡單說，讓你明白）。
settle down：別著急。影片中用來安慰觀眾，類似表達還有「take it easy」。

如何練好發音？

這位講者的發音清晰，語速適中，很適合做「shadow speak」練習。注意以下幾點：首先，chromosomal translocation（染色體易位）中的「chromosomal」要發准/kroʊməˈsoʊməl/，重音在第三個音節；其次，「Reed-Sternberg cell」（里德-斯泰伯格細胞）的「Sternberg」要讀成/ˈstɜːrnˌbɜːrɡ/，不要漏掉捲舌音；最後，「eosinophilic」（嗜酸性的）較長，可拆分為/eəˌsɪnoʊˈfɪlɪk/，慢慢讀準每個音節。跟讀時，盡量模仿講者的語調和停頓，感受學術英語的節奏，對提高雅思口语練習很有幫助。

透過這部影片，不僅能學到醫學知識，還能提升英語能力，趕緊試試「shadowspeak」練習吧！

视频中的语法

说话人最常用的结构，并附上视频中的原话：

结构	视频中的用法
现在完成时 have/has + 过去分词 — 过去发生但与现在仍有关联的事	have increased · has become · have decreased
被动语态 be + 过去分词 — 强调发生了什么，而不是谁做的	is made · are involved · is divided
定语从句 who / which + 从句 — 补充说明人或事物	subtype, which is · potential, which can

什么是跟读法？

跟读法 (Shadowing) 是一种有科学依据的语言学习技巧，最初开发用于专业口译员的培训，并由多语言者Alexander Arguelles博士普及。这个方法简单而强大：您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同，跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性，语调，节奏，连读，听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。

影子跟读法: 阅读完整分步指南 →

跟读练习: Lymphoma - 通过视频学习英语口语

Embryology of the Nervous System

Multiple Myeloma - signs and symptoms, pathophysiology, treatment

TOEFL 2026 Listening Practice: Listen to 2 Academic Talks

Introduction to Hematology

Clinical Cuts: B-Cell Activation, Differentiation, & Contraction

Antimycobacterials | Anti-TB Drugs

Pediatric Diarrhea – Pediatrics | Lecturio

Review of Musculoskeletal System (Bones & Muscles) - Biology Lectures Series

A man hiked in the woods. Every brain cell got cooked.

🏥 Locating Organs with Surface Landmarks: Do You Know Where Key Organs Are?

The medicine myth | Denis Noble, Nessa Carey, Guy Brown