which和that的用法区别技巧
Which period of history would you most like to have lived in?
你最喜欢生活在哪一个历史时期？
You must signal which way you are going to turn.
你要朝哪个方向转，必须发出信号。
There are two points which I wanted to make.
我想要指出的有两点。
The school's approach must be complementary to that of the parents.
I find it interesting that she claims not to know him.
她声称不认识他，我觉得真是耐人寻味。
Oh come now, things aren't as bad as all that.
哦，好啦，情况并不是那么糟。
《牛津高阶英汉双解词典》
