The algorithm doesn't know that it's going to take this long to compute, it's just busy crunching away, trying to see if it can make it happen.

这很可能会发生，但是你知道的,算法本身并不知道，计算这个问题需要多长的时间，它就一直忙碌的算啊算。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's just, yeah, taking advantage of people who need a quick sandwich when they're at lunch and

这是利用了人们午餐时间需要快速来一份三明治的这个市场需求，

知道普雷特公司吗？ - SpeakingMax英语口语达人

As I said, what we want to do is, we want to count the number of basic steps it takes to compute a computation as a function of input size.

我刚才提到了，我们要建立，一个根据输入大小的方法来计算,一个计算过程需要的时间,建立这个方法需要几步呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

Now of course, nutrition is the kind of subject that one could spend the whole semester on, could spend--do multiple classes on, because it's a very interesting, fascinating, and complex topic.

当然,要学习营养学这门课程,可能需要整个学期的时间,耗费很多课时,因为这个话题十分有趣,且吸引人,而又一言难尽

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So that way you can have an idea if, oh, I do really understand this but I'm a little bit slow, maybe I need to practice this one type of problem a little bit longer so I can get up to speed so I'm going to be able to get through all this in terms of the exam time.

这样你就可以知道，假设，噢，我真的懂这个，但是我的速度有点慢，或许我需要在练习这个类型的题目上,多花一点时间,这样我就可以提高自己的速度,可以全部做完,在考试规定的时间内。

麻省理工公开课 - 化学原理课程节选

What I want to think about though, is, how much time does this take?

我想的是，这个程序需要多长的时间来运行？

麻省理工公开课 - 计算机科学及编程导论课程节选