"I was one of these teenagers, and so I know how difficult it can be to break this habit when it's been with you for a long time,".

VOA: standard.2009.06.22

And the obvious question I could start with is, and suppose I ask you, how long does the algorithm implemented by this program take to run?

我开始这个话题的第一个问题是，假设我问你，由这个算法实现的程序大概,要运行多久才能给出答案？

麻省理工公开课 - 计算机科学及编程导论课程节选

How long does it take you to get to your destination with Eurostar?

你坐欧洲之星去目的地要花多长时间？

方便的欧洲之星 - SpeakingMax英语口语达人

Lieutenant General Ronald Burgess response this question from Levin, "With the installed centrifuges that they have, how long would it take,approximately, to produce enough highly-enriched uranium for one nuclear weapon?"

VOA: standard.2010.04.14

If we weren't so pressed for time, I kinda wanna see how long we could get away with this before it gets awkward, but that, in fact, is an infinite loop t hat's hopefully deliberate.

如果有时间，我想看看,我们需要花多长时间解决这一问题，事实上，它是我故意,使用的无穷循环。

哈佛公开课 - 计算机科学课程节选

Lisp The problem with that technique, while it's very general, is how long does it take me to find the i'th element of the list?

很多编程语言包括，都是用了这种技术,这个问题就是，当数组很大的时候？

麻省理工公开课 - 计算机科学及编程导论课程节选

The topic for this week is cell communication: how mechanisms that cells within a complex organism use to communicate with each other at short distances or long distances.

本周的主题是细胞通讯,即在一个复杂机体中的细胞,采用何种交流机制,在或长或短的距离中相互联系

耶鲁公开课 - 生物医学工程探索课程节选

- So what we're seeing is this is notes from 1902 -- he actually didn't publish any of this work or these ideas that led to Lewis structures until 1916, but his early class notes were used as evidence about how long ago he actually came up with the idea of it.

我们看到的这是，1902，年的讲义-,实际上他直到1916年才发表这些工作或者想法,后来发展成为了路易斯结构，但他早年上课的讲义却成为了他在多久之前,就产生了这个想法的证据。

麻省理工公开课 - 化学原理课程节选

With simple branching, how long is it going to take to run a piece of code?

但是在简单分支程序中，执行一个程序,要多长时间呢？

麻省理工公开课 - 计算机科学及编程导论课程节选