whether...or...
是……还是……
例句
We're debating whether or not to go skiing this winter.
我们盘算着今年冬天是否去滑雪。
《牛津词典》
The jury is out on whether or not this is true.
这是否属实尚无定论。
《柯林斯英汉双解大词典》
The question arises as to whether or not he knew of the situation.
问题是，他对局势是否了解。
