There's no way to tell who it was. 沒辦法知道是誰做的。
There's no telling what you think. 沒辦法知道你在想什么。
There's no telling how long they'll last. 不知道他們會持續(xù)多久。
Do you think the new business will succeed? 你覺得新生意能成功嗎?
There's no telling what happen to it. 沒辦法知道將來會發(fā)生什么事。