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blood (uncountable noun)
blood 作为不可数名词，表示血液。
There was blood on his hands.
他手上有血。
血液；血
先理解核心含义，再看它在真实句子里的用法。
血液；血
the red fluid that the heart pumps through the body, carrying oxygen and nutrients
There was blood on his hands.
他手上有血。
由心脏泵送全身的液体(在脊椎动物中为红色),包含血浆、血细胞和血小板
the fluid (red in vertebrates) that is pumped through the body by the heart and contains plasma, blood cells, and platelets
气质或性情
temperament or disposition
时尚社会中的放荡者
a dissolute man in fashionable society
The nurse took a small sample of blood to test for infection.
护士抽取了一小份血液样本以检测感染。
AI contextual example
Donating blood can help save lives in an emergency.
在紧急情况下献血可以挽救生命。
AI contextual example
He lost a lot of blood in the accident and needed a transfusion.
他在事故中失血很多，需要输血。
AI contextual example
blood carries oxygen and nutrients to the tissues and carries away waste products
血液将氧气和营养物质输送到组织,并带走废物
WordNet
blood 作为不可数名词，表示血液。
There was blood on his hands.
他手上有血。
固定短语，意为“残酷地”或“蓄意地”。
He killed the man in cold blood.
他冷酷地杀了那个人。
Not this
I have a blood on my finger.
Use this
I have blood on my finger.
blood 是不可数名词，前面不能加不定冠词 a。
Not this
The bloods are red.
Use this
Blood is red.
blood 作为物质名词通常不可数，不能用复数形式 bloods，谓语动词应用单数 is。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
血压
The doctor checked my blood pressure.
医生检查了我的血压。
验血
She needs a blood test to check her iron levels.
她需要验血来检查铁含量。
血型
What is your blood type?
你是什么血型？
献血
Blood donation can save lives.
献血可以拯救生命。
血管
High pressure can damage blood vessels.
高血压会损伤血管。
血糖
He monitors his blood sugar daily.
他每天监测血糖。
冷血地，残忍地
The murderer killed his victim in cold blood.
凶手冷血地杀害了受害者。
血浓于水
Even though they had a fight, blood is thicker than water, and they reconciled.
尽管他们吵了一架，但血浓于水，他们和好了。
使某人怒火中烧
The injustice of the situation made her blood boil.
这种不公的处境让她怒火中烧。
血、汗、泪
He promised to give blood, sweat, and tears to the project.
他承诺为这个项目付出血、汗、泪。
血浓于水
Even though they fought, they supported each other because blood is thicker than water.
尽管他们吵架了，但他们互相支持，因为血浓于水。
发短 /ʌ/ 音 (如 blood)
Same pattern, same sound
Use blood naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
blood（血）与 flood（洪水）押韵，想象血如洪水般流出。
血（血液）一词为中性，常用于医学、日常生活及比喻语境，如'流血'或'血统'。通常无特殊语体限制，适用于正式与非正式场合。
通常不可数
Dictionary facts from AI_FALLBACK, ECDICT, WORDNET.