breathing

breathing
noun
  1. [mass noun]the process of taking air into and expelling it from the lungs
    呼吸
    his breathing was shallow.
    他的呼吸很浅。
  2. a sign in Greek (‘ or’ ) indicating the presence of an aspirate rough breathing or the absence of an aspirate smooth breathing at the beginning of a word
    (希腊语词首的)送气符号“‘”;不送气符号“’”
英语宝典
考试词汇表