全部

1·Knock it off, it used to tell someone to stop doing sth. that one finds annoying or foolish.

这个词组用于告诉某人停止做烦人或愚蠢的事，也就是“住手；别闹了”。

2·Sth . be used to do sth.

是固定词组，意思是用来做某事。

3·Died basically, unless they have infinite STH used to one's own advantage.

基本死了，除非他们有无限的资本。

4·be used to doing sth.

表示“习惯于做某事”。

5·Perfomatives: are the sentences that did not state a fact or describe a state, and are not verifiable. But they are used by the speaker to do STH.

既不是陈述事实也不是描写状态，无法证实，但被说话者用来做事的。