I went for a walk to clear my head.

我去散一会儿步，好清醒清醒头脑。

《牛津词典》

It's time to clear up.

该打扫了。

《牛津词典》

I'll have to clear it with the manager.

这事我需要获得经理的准许。

《牛津词典》

The term today most often is used to describe a powerful machine designed to clear away trees and other big objects.

VOA: special.2009.02.15

But because the way sound waves operate, we have these low sound waves taking a very long time to clear.

但鉴于声波的传播方式,低声波要过更长的时间才消失

耶鲁公开课 - 聆听音乐课程节选

So what I wanted to do is loop back, at least with a couple of things that we see recurring and very understandably so, but let's try to clear up a couple of frequently occurring issues.

所以我想要做的是回环，至少用两三个,我们看到的东西返回，并且可以理解地，让我们试着处理几个,频繁发生的事情。

哈佛公开课 - 计算机科学课程节选

Senator DODD: (Unintelligible) I'm going to ask the audience, we'll have to clear this room.

NPR: Senators Skeptical Of Bailout Package

By the time Francis arrived on campus, hordes of people were still waiting to clear checkpoints.

CNN: Pope Francis canonizes controversial saint Serra

Tatarintsev, that he had called Icelandic premier Geir Haarde directly to clear up the matter.

FORBES: Iceland's Vanishing $5.4B Loan