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alternation [ɔ:ltə'neiʃən]    添加到生词本 复制网址
基本释义
  • n. 交互,轮流,隔一个
常用短语
    1. alternation of generations
      n.世代交替
英英解释
  •  2个名词解释

    1. being regularly exchangeable
    2. successive change from one thing or state to another and back again