This is your opportunity, if you're sitting at home, you could take off to turn off the TV.

机会来了，如果你正在家里，就可以马上开始了，关上电视。

普林斯顿公开课 - 人性课程节选

OK. With that in mind, let's go back to where we were. And where were we?

我们回过头来看看，我们讲到哪里了？,我们正在开始讲二分查找？

麻省理工公开课 - 计算机科学及编程导论课程节选

So, if you're looking for another reason to quit, if you're looking for a reason not to start smoking, here's another good one.

因此，如果你正在寻找戒烟的另一个理由，如果你正在寻找一个不开始吸烟的理由，这就是很好的一个。

麻省理工公开课 - 化学原理课程节选

And so you have to go back to the drawing board and realize Bubble Sort or whatever it is you're using just isn't enough to snuff, I need to come up with something more clever.

因此，你必须重新开始,而且会意识到冒泡排序,或你正在使用的方法并不理想，我需要提出一种更好的方法。

哈佛公开课 - 计算机科学课程节选

What worries you about America today, terrorism, wars in Iraq, Afghanistan, economy, the deficit, medicare, social security or America's place in the world, which many say sliping or begining to slip?

今天的美国哪些地方让你担心呢，恐怖主义，对伊拉克和阿富汗战争，经济，赤字，医疗保险，社会保障,还是美国的国际地位，有人称美国的地位正在或开始下滑？

普林斯顿公开课 - 国际座谈会课程节选