military officer has called an "economy of force" operation, in which the United States did what it could, after doing everything that was needed in Iraq.

VOA: standard.2009.03.27

The problem is that you get tired of doing math after a while, 100 years, 1,000 years, a million years, whatever it is.

问题是经过一段时间后你会厌倦数学，不管是一百年还是一百万年。

耶鲁公开课 - 死亡课程节选

After that, like everyone started doing it.

此后，好像每个人都开始这么做了。

忘不了的生日礼物 - SpeakingMax英语口语达人

At least I don't have those. But what I've done is to excerpt some of the texts earlier in the term-- and actually there's so that it's a little bit lighter after break, when we're doing those long novels.

至少我没有列出那些,但我已经做完的是,在放假前当然会有稍多的阅读量，假期过后我们再读那些长篇小说时就会轻松一点。

耶鲁公开课 - 1945年后的美国小说课程节选