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haemoglobin carries/transports sth
作不可数名词时谓语动词用单数；复数 haemoglobins 指不同类型的血红蛋白。
Haemoglobin carries oxygen from the lungs to every cell in the body.
血红蛋白将氧气从肺部输送到身体的每一个细胞。
血红蛋白
先理解核心含义，再看它在真实句子里的用法。
血红蛋白
haemoglobin
Haemoglobin carries oxygen from the lungs to every cell in the body.
血红蛋白将氧气从肺部输送到身体的每一个细胞。
血红蛋白,由珠蛋白和血红素组成,使红细胞呈红色,主要将氧气从肺运至全身组织
a hemoprotein composed of globin and heme that gives red blood cells their characteristic color; function primarily to transport oxygen from the lungs to the body tissues
Your blood's red colour comes from haemoglobin, the protein that carries oxygen.
你血液的红色来自血红蛋白，这种蛋白质负责携带氧气。
Doctors checked her haemoglobin level before the operation.
手术前医生检查了她的血红蛋白水平。
Low haemoglobin can make you feel tired and weak.
血红蛋白偏低会让你感到疲倦无力。
作不可数名词时谓语动词用单数；复数 haemoglobins 指不同类型的血红蛋白。
Haemoglobin carries oxygen from the lungs to every cell in the body.
血红蛋白将氧气从肺部输送到身体的每一个细胞。
low/high 等形容词可直接修饰 haemoglobin，表示水平高低。
She had low haemoglobin during her pregnancy.
她怀孕期间血红蛋白偏低。
介词 in 后接指标名词，类似表达还有 increase/decrease in haemoglobin。
The blood test showed a rise in haemoglobin.
血检显示血红蛋白升高。
Not this
Red blood cells contain haemoglobins.
Use this
Red blood cells contain haemoglobin.
这里 haemoglobin 指血红蛋白这种物质，是不可数名词；只有表示不同种类的血红蛋白时才用复数 haemoglobins，泛指时不加 s。
Not this
The haemoglobin is important for carrying oxygen.
Use this
Haemoglobin is important for carrying oxygen.
在泛指血红蛋白这种物质时，一般不加定冠词 the；中文没有冠词，学习者容易照字面添加 the，但英语中泛指物质名词前不用 the。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
低血红蛋白
The doctor said my low haemoglobin was causing the tiredness.
医生说我血红蛋白偏低导致了疲劳。
血红蛋白水平
Regular exercise can help maintain a healthy haemoglobin level.
经常锻炼有助于维持健康的血红蛋白水平。
血红蛋白检测
She had a haemoglobin test before the operation.
手术前她做了血红蛋白检测。
胎儿血红蛋白
Foetal haemoglobin has a higher affinity for oxygen than adult haemoglobin.
胎儿血红蛋白对氧的亲和力高于成人血红蛋白。
异常血红蛋白
Sickle cell disease is caused by abnormal haemoglobin.
镰状细胞病是由异常血红蛋白引起的。
Use haemoglobin naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：haemo=血红素，globin=球蛋白，合起来就是负责运氧的血红蛋白。
语域：neutral 常见场景：生物学、医学检验、科普文章 该词为中性偏正式的医学术语，通常用于医学、生物学或体检报告等书面语境；日常口语中较少出现。
haemoglobin is pronounced /ˌhiːməˈɡləʊbɪn/. globin /ˈɡləʊbɪn/ and myoglobin /ˌmaɪəˈɡləʊbɪn/ share the stressed rhyme /ɡləʊbɪn/; haem /hiːm/ matches only the opening /hiːm/. robin /ˈrɒbɪn/, goblin /ˈɡɒblɪn/ and bobbin /ˈbɒbɪn/ are spelling lookalikes but do not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.