urine

urine
[ˈjʊərɪn, -rʌɪn]
noun
  1. [mass noun]a watery, typically yellowish fluid stored in the bladder and discharged through the urethra. It is one of the body's chief means of eliminating excess water and salt, and also contains nitrogen compounds such as urea and other waste substances removed from the blood by the kidneys
    尿，小便
语源
  1. Middle English: via Old French from Latin urina
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