urine

Compared meaning: the liquid waste passed from the body (noun).

比较义项：尿，小便（名词）。

• urine 本词

  The clinical, formal term used in medical, scientific or official contexts; common in phrases like 'urine sample' or 'urine test'.

  医学、科学或正式场合使用的临床用词，常出现在“尿样”“尿检”等说法中。

  The nurse labeled the urine sample before sending it to the lab.

  护士在把尿样送去化验之前先给它贴上了标签。

• pee

  An informal, everyday word, often used with children or pets; sounds too casual for medical or official contexts.

  口语化的日常用词，常用于对儿童或宠物说话；在医学或正式场合使用会显得太随意。

  Can you take the dog outside? He needs to pee.

  你能带狗出去一下吗？它要尿尿了。

Both words name the liquid waste the body passes, but differ in register. Urine is the clinical, formal term, used in medical or official contexts, as in 'urine sample'. Pee is informal and everyday, often used with children, and sounds too casual for medical writing.

这两个词都指人体排出的液态废物，但语域不同：urine 是医学、正式场合的说法，pee 是日常口语甚至略显幼稚的说法，两者一般不能互换使用。