新东方-柯林斯雅思备考词典

beforehand

英  [bɪˈfɔːhænd]
    

[ADV]

    ADV. 副词
  • 1事先 , 预先

    If you do something beforehand, you do it earlier than a particular event.

    双语例句

    例:

    How could she tell beforehand that I was going to go out?

    她是如何预先知道我要出门的?

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