Besides the actual performance, they look at how long it takes the soldiers to complete their tasks, since time can make the difference between survival or death for those who are lucky enough to be alive after the nuclear blast.

VOA: standard.2010.07.21

One of the things you could imagine is just try it on and input, see how long it takes.

你们想出来的方法只是可能就是通过,输入来试试，看运行时间会有多长。

麻省理工公开课 - 计算机科学及编程导论课程节选

So how long it takes to run is related to how many items I end up being able to fit into the knapsack.

所以，运行的时间是和我能够,装进背包的物品数目有关的。

麻省理工公开课 - 计算机科学及编程导论课程节选

And this is a very fast speed, of course, it's about 700 million miles per hour. So, one way to put that in perspective is to think about how long it takes for a light beam to get from earth to the moon. Does anyone have any guesses? Eight seconds, that sounds good.

当然这是一个非常快的速度，它大约是每小时7亿英里,为了更形象化，我们,看看光从地球到月球,需要多少时间，你们猜猜是多少？,8秒，猜的不错。

麻省理工公开课 - 化学原理课程节选

Do you think that we have the stomach to stay there for as long as it takes to stablise the country, given how important it is We are going to stay there for as long as we do.

考虑到重要性,您认为我们能不能坚持到这个国家的稳定,我们会留在那里。

普林斯顿公开课 - 国际座谈会课程节选

Oh, but how do I know how long it takes to do x 2?

但是，我想知道用第二种方法,做要多长时间呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

We don't know how long it takes to do x 2.

我们不知道要多长时间。

麻省理工公开课 - 计算机科学及编程导论课程节选