twice

twice
adverb
  1. two times; on two occasions
    两次
    the earl married twice.
    这个伯爵结了两次婚。
    the tablets should be taken twice a day.
    药片每日两次。
    ■double in degree or quantity
    两倍
    I'm twice your age.
    我年龄是你的两倍。
    an engine twice as big as the original.
    比原件大一倍的引擎。
常用词组
once bitten, twice shy
  1. 见 bite
think twice
  1. 见 think
语源
  1. late Old English twiges, from the base of two + -s (later respelled -ce to denote the unvoiced sound); compare with once
英语宝典
考试词汇表