A2 （用于表示某事也许不会发生）否，或许不
used to express the possibility that something might not happen
Are you going to reply or not? 你会不会回复？
I still don't know whether she's coming or not. 我还不知道她是否会来。
Are you eating with us or not?
I don't know whether to go or not.
Should we invite her or not?
I'm still undecided about whether to buy that dress or not.
I don't know whether to say anything to her or not.
See also: not