Yet people often do not get medical help until the damage already has been done.

VOA: special.2009.04.06

So if you've ever done something bad like drop your laptop or smack your computer and you've never been told not to do this.

如果你以前做过类似的摔或拍打电脑,并且没有人告诉你不可以这样做。

哈佛公开课 - 计算机科学课程节选

that something you that you either did or did not do but should have done.

为一些你之前做过的或是本该做却没有做的事情表示遗憾。

I should have 课堂 - SpeakingMax英语口语达人

They claim they do not want to politicize the face veil, but most French agree this has already been done.

VOA: standard.2010.01.30

The first step is divide them in half. All right? I'm not sure how to mark it here, remember I need to come back there. I'm not yet done. What do I do?

我不能确定如何,在这里进行标记,记住我会回这里进行讲解,我还没做完呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

"As much as I like Barack Obama, I just do not know that he has done enough to warrant such an honor."

VOA: standard.2009.10.09

In this book, what I wanna just hit home here, especially for those if you are watching this, is that spiritual life and religious expression is not something that you do once and then you're done.

这本书，我想重申它的精彩之处，观众们，在于告诉你们，精神生活和宗教表达,并不是一次就,可以完成的事儿。

普林斯顿公开课 - 人性课程节选

"In general, it was the right thing to do, but not in the way it was done."

VOA: standard.2010.06.01

Now we're not done and of course we're out of time, so what are we going to do when we come back next week?

现在我们还没有讲完,我们没有时间了,那么下周上课我们要做些什么

耶鲁公开课 - 博弈论课程节选

"People did not believe we could do it. And yes,we have done it.

VOA: standard.2010.07.05

Do not haunt my soul. I have done well forgetting you.

不要缠着我，我已经很努力忘记了你。

耶鲁公开课 - 1945年后的美国小说课程节选

"We will be respectful, even when we do not agree. And we will convey our deep appreciation for the Islamic faith, which has done so much over so many centuries to shape the world - including my own country", "The United States has been enriched by Muslim Americans.

VOA: standard.2009.04.06

The other thing about it is that you could make lots of things that are new but generally you think of engineers as making things that are not just new but they're useful, that they do something that needs to be done, and that they do something that improves life, the quality of life of people.

另一个区别是,科学家会做很多很多新鲜玩意儿,而一般来讲,工程师做的东西不只是新奇,它们还很有用,他们做那些需要做的东西,他们做的东西能够提高,人类的生活水平和生活质量

耶鲁公开课 - 生物医学工程探索课程节选

She gave them a chance to choose," "This is why I am here, this why so many tens of thousands of people are here, because we want to show Saylan we appreciated her, we love her and despite all the work she has done she was treated as a guilty person by the state, and we do not approve of that."

VOA: standard.2009.05.20

"How do we get creative and think not just of what they have done, but what they are going to do next and next and next?" But the homeland security secretary says the U.S.government must also take care not to intrude on citizen privacy as it ramps up its defense of the worldwide electronic network government agencies, businesses and individuals increasingly depend on.

VOA: standard.2009.08.11