"Unless we reconstruct and maintain the international financial system, if countries start doing it bilaterally instead of multilaterally, the system will fall apart and we will end up in a depression,".

VOA: standard.2009.03.29

You are not dreaming right now, unless you're asleep but if you're-- and you can't usually be immoral in a dream.

你们现在不是作梦，除了那些睡着的同学-,我们很少会在梦里做出不道德的事。

耶鲁公开课 - 心理学导论课程节选

And so, even by units analysis, if the units come out right, you've got a good shot that unless you've really, really messed up, that the answer is going to be right.

甚至在单位分析中，如果你的单位正确，你就能做的很有条理否则会一团糟，而注意了单位你的答案才有可能正确。

麻省理工公开课 - 固态化学导论课程节选

"I do not believe we ought to add troops in Afghanistan unless it is indispensable in our war against al-Qaida, "If it is, then we have to do whatever it takes because al-Qaida is out to annihilate us.

VOA: standard.2009.11.23

If he splits his head open and there's blood everywhere, I'm less likely to laugh unless I don't like him or something.

如果他摔个头破血流，我就笑不出，除非我很讨厌这个人。

耶鲁公开课 - 心理学导论课程节选

"Because,even if the military operation, which it is succeeding and which is very good, but unless the problem of the internally displaced people is resolved, or at least their difficulties reduced, it will contribute largely to the overall success of the campaign."

VOA: standard.2009.06.03

So, in fact we may not find a sock at all and yet we don't seem to handle that at all unless if we don't find any socks, what do we do?

实际上我们可能找不到袜子,并且不用处理那些事情,前提是我们没有找到任何袜子，我们做什么呢？

哈佛公开课 - 计算机科学课程节选