英汉词典

1. (表示选择或怀疑)是否，是不是
    You use whether when you are talking about a choice or doubt between two or more alternatives.

    e.g. To this day, it's unclear whether he shot himself or was murdered...
           至今尚不清楚他究竟是饮弹自杀还是被谋杀。
    e.g. Whether it turns out to be a good idea or a bad idea, we'll find out...
           它到底是个好主意还是坏主意我们很快会见分晓。

2. 无论;不管
    You use whether to say that something is true in any of the circumstances that you mention.

whether的意思

    e.g. This happens whether the children are in two-parent or one-parent families...
           不管孩子是生活在双亲还是单亲家庭，这种情况都会发生。
    e.g. Whether they say it aloud or not, most men expect their wives to be faithful.
           大多数男人还是希望他们的妻子对自己忠诚，不管他们有没有将这一想法大声说出来。