whether

whether
conjunction
  1. expressing a doubt or choice between alternatives
    是…(还是…);或者…(或者…);不是…(就是…)
    he seemed undecided whether to go or stay.
    他似乎不能决定是走还是留。
    it is still not clear whether or not he realizes.
    他是否意识到了还不清楚。
    ■expressing an enquiry or investigation (often used in indirect questions)
    是否(表示询问或调查,常用于间接引语中)
    I'll see whether she's at home.
    我去看看她是否在家。
    ■indicating that a statement applies whichever of the alternatives mentioned is the case
    无论如何,不管怎样
    I'm going whether you like it or not.
    不管你喜欢与否,我都要走。
常用词组
whether or no
  1. whether or not
    是否
    the only issue arising would be whether or no the publication was defamatory.
    惟一要解决的问题是确定该出版物是否是诽谤性的。
  2. (archaic)in any case
    (古)无论如何,不管怎样
    God help us, whether or no!.
    不管怎样,上天一定要助我们一臂之力。
语源
  1. Old English hwæther, hwether, of Germanic origin; related to German weder 'neither'
用法
  1. On the difference between whether and if, see usage at if
英语宝典
考试词汇表