whether
英 [ˈwɛðə] 美 [ˈhwɛðər]
conj. 是否;不管是...(或是)
例句:
The council is considering whether to approve of the use of firearms.
政务委员会正在考虑是否要批准动用武器。
It's doubtful whether she'll attend the meeting.
她未必会参加会议。
I can't tell whether she loves me or she hates me.
我说不准她是爱我还是恨我。
I don't know whether to accept or not.
我不知道是否要接受。