And the context of sorting, the worst case is your handed a problem that's in complete reverse order because that implies you have - to do as more work that could possibly-- that you could-- you have to do more work than you would of course if things were in perfect order.

在排序的环境中，最糟糕的情况是待排序的序列是,完全逆序的，在这种情况下,你不得不做更多的工作-,比起一个较理想顺序的序列,你必须花费更多的努力。

哈佛公开课 - 计算机科学课程节选

But when I had to go... I had to find a book that was in the business school library and I went there.

但当时我必须去……我不得不去商学院的图书馆找一本书，于是我就去了。

哥伦比亚的氛围 - SpeakingMax英语口语达人

It's going to be that if my preferred beer flavor is here say, this is me, my preferred beer flavor is here, then if I end up having to consume Guinness, I have to pay the price of Guinness and I also incur some costs because Guinness isn't the perfect beer for me, it's a little bit too strong.

它变成,如果我喜爱的啤酒味道,如果是我的话,我喜欢的啤酒味道在这,然后如果我最后不得不选择吉尼斯,我必须要支付吉尼斯的价格并且,我还会支出一些成本,因为吉尼斯不是我最爱的啤酒,它太强了

耶鲁公开课 - 博弈论课程节选

Now, efficiency is obviously an important consideration when you're designing code, although I have to admit, at least for me, I usually want to at least start initially with code that works, and then worry about how I might go back and come up with more efficient implementation.

现在，当你设计程序的时候效率,是不得不考虑的问题，虽然我必须承认，至少对我来说,我是先担心程序能不能运行,再去把它的效率优化的,我喜欢可靠点的东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

Religion had to bring a softening effect upon against the violent and bestial character of the early Romans. But for us today, Machiavelli writes, religion has to serve the opposite purpose.

宗教必须带来一种缓和效应，用以针对,早期罗马人的野蛮残忍的性格,但是对于今天的我们来说，马基雅维利写道，宗教不得不为相反的目的服务。

耶鲁公开课 - 政治哲学导论课程节选

So we have to come up--we mortals-- have to come up with some other device, and our device to remember things is to try to write it down because my premise here is, if you can write music down clearly you are hearing it, clearly, and you would have a better chance of remembering it if you could write it down.

因此我们普通人,必须开发出,不得不开发出一些其它的方法,而我们用来记忆的方法,就是试着写下来,它的前提是,如果你可以将听到的音乐清楚地写下来,很清楚,那么你就更有可能,记住它,前提是你能写下它

耶鲁公开课 - 聆听音乐课程节选