“事先”造句
她怎么会
事先知道我要出去？
How could she tell beforehand that I was going to go out?
这可不是头脑一热作出的决定。我们
事先仔细地讨论过。
It wasn't a spur-of-the-moment decision. We discussed it in detail beforehand.
我临走时特地
事先把办公桌清理了一下。
I took the precaution of clearing out my desk before I left.