Doctors say it is common for heart patients to need new stents over time.

VOA: special.2010.02.17

So the next time I need it, I can look it up.

所以下次我需要的时候，我就可以进行查询。

麻省理工公开课 - 计算机科学及编程导论课程节选

Everybody's good at it, gay people are better at it than straight people, and, again, you don't need much time.

大家都很擅长判定性取向，但同性恋者比异性恋者更擅长，而且不需要太多时间。

耶鲁公开课 - 心理学导论课程节选

It was,at the same time, really urgent about a need for love."

VOA: special.2010.04.05

2 7 And I'm not going to draw the rest of the tree for you here, because I drew it last time, and you don't need to see the whole tree.

从这儿我们得到了,我在这里不会剩下的树都画出来，因为我上次画过了。

麻省理工公开课 - 计算机科学及编程导论课程节选

"When it is all said and done, I think it is time for a 'do over'. We need to start this budget process all over again.

VOA: standard.2009.03.24

But we've been so completely socialized into thinking two things: one is that we need water with us all the time; and second we have to buy it.

但如今我们都对以下两个观念习以为常了,第一是我们每时每刻都需要水,第二是我们要花钱买水

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We don't know the intended recipient of this letter, and we actually have no idea whether Milton actually sent the letter; but a couple of drafts of this letter actually exist in Milton's own hand, and the letter is clearly a document that Milton had devoted some energy and some time to. We need to look at it.

我们不知道收件人是谁，我们也不清楚弥尔顿到底有没有寄这封信;,但这份信的草稿确实在弥尔顿那里，弥尔顿显然对这封信投入了不少,时间和精力，我们来看看。

耶鲁公开课 - 弥尔顿课程节选

In general, when we wanna talk about running time, we just need a silly place holder, so we'll call it T for time.

一般情况下，当我们讨论运行时间时，需要一种表示方法，这里T表示时间。

哈佛公开课 - 计算机科学课程节选

Right? If that was the case in that code, then my complexity is no longer log, because I need linear access for each time I've got to go to the list, and it's going to Lisp be much worse than that.

这里的复杂度不再是对数的了，因为每次在列表中，查找需要线性访问,可能还要糟糕,其实，有些编程语言，如。

麻省理工公开课 - 计算机科学及编程导论课程节选