i can't say whether or not he will come on time..他能否准时来,我说不准.whether or not能换成

问题描述:

i can't say whether or not he will come on time..他能否准时来,我说不准.whether or not能换成
whether吗,两者有什么区别

基本没有区别,都是可以的 看哪个顺眼用哪个