大便excrementtodefecatefeces你的大便里有血或粘液吗?Bethereanybloodormucusinyourstool?便秘有困难的、不完全的或不经常从肠道排泄干燥且硬的大便Difficult,incomplete,orinfrequentevacuationofdry,hardenedfecesfromthebowels.他每天大便两次。Hegoestostooltwiceaday.小便urinateurinepasswater我憋不住了(要小便),得找个厕所.Ican'tholdout(ieretainmyurine)muchlonger;Imustfindatoilet.‘小便’是‘排尿’的委婉语.`Passwater'isaeuphemismfor`urinate'.便