He died last year. By that time, hundreds of thousands of the filters were in use in developing countries.

VOA: special.2009.06.22

But in practical purposes most of the time, they didn't-- they just mixed these together and they might use different things.

但实际上大多数情况下，她们并没有。。。,而是把财产混合在一起了。

耶鲁公开课 - 新约课程节选

If the question of time is not explicitly brought up, then you should know that you have to use this formula.

如果时间的问题并没有明确提出,那你应该知道,必须要用这个式子

耶鲁公开课 - 基础物理课程节选

By that time, the use of the telegraph meant that newspapers could report on recent events.

VOA: special.2009.04.20

This is the sort of thing that people who do numerical programming worry about all the time. And there are a lot of a little tricks they use to deal with that, they'll perturb it a little bit, things like that.

这是一些做计算编程,要时刻注意的问题,当然有的时候我们还需要,应对一些假象，比如像这样被扰乱的。

麻省理工公开课 - 计算机科学及编程导论课程节选

For the first time, scientists around the world had a limitless number of cells they could use to test the effects of diseases, medicines and chemicals.

VOA: special.2010.07.21

You can go ahead and use that equation, or you could figure it out every time, because if you know the total number of nodes, and you know the angular node number, then you know how many nodes you're going to have left.

你们可以直接用这个方程，或者每次都自己算出来，因为如果你们知道了总的节点数，又知道角向节点数，就知道剩下的节点数是多少。

麻省理工公开课 - 化学原理课程节选

Rachel Krantz-Kent is program manager of the American Time Use Survey.

VOA: special.2011.07.22

This is a kind of argument that we use all the time.

这是我们常用的一种论证方式

耶鲁公开课 - 死亡课程节选

It can be accomplished in part by direct recruiting by the Government itself, treating the task as we would treat the emergency of a war, but at the same time,through this employment, accomplishing greatly needed projects to stimulate and reorganize the use of our great natural resources.

VOA: special.2011.05.19

And what we find, the first example of a Bronze Age-- and I use the word civilization now for the first time, because before the Bronze Age-- there is nothing that we would define as civilization.

我们发现的第一个文明出现在青铜时代,也是我第一次用文明这个词,因为在青铜时代之前,没有任何东西能称之为文明

耶鲁公开课 - 古希腊历史简介课程节选

So,yes,there is a threat particularly of the use of radioactive material, although we have no specific evidence indicating any capability at this time."

VOA: standard.2009.05.01

What's now the most efficient use of people's time, like how can people maybe be working on stuff not serially but I didn't say someone's working on launching a high school product on the photos and someone else is working on the thing every launch next to each, you know.

才能达到最高的工作效率，也许可以摒弃,连续工作的模式,我并不是说,他们是在开发一个小儿科的产品,有人负责建立相册,有人负责,下周要开启的项目。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

Senior manager Tshepo Ramodibe said the group hopes to use the upcoming football World Cup, being played for the first time on African soil, to broaden awareness of the disease and the way it can be prevented and treated.

VOA: standard.2010.04.23

the word "Jew" isn't something we can really historically use until about this time , so most of our period we're going to be talking about the ancient Israelites to become an Israelite, you simply joined the Israelite community, you lived an Israelite life, you died an Israelite death.

关于Jew这词历史上,直到公元前500年才开始用，所以我们的大多数时间,将会讨论古以色列人,成为一个以色列人，你只要加入以色列人社区，按以色列人方式生活，按其方式安葬。

耶鲁公开课 - 旧约导论课程节选

Now that the decision has been made to move forward with what the review called an "integral" part of U.S.defenses, the second ranking U.S.military officer, General James Cartwright, says the American military commands will spend some time figuring out how to use the various aspects of the system in their regions.

VOA: standard.2010.03.26

Or another way of saying it is, we're going to use as the basic steps, those operations that run in constant time, so arithmetic operations.

我们用可以在恒定时间内完成的操作,算法，比较,内存读取。

麻省理工公开课 - 计算机科学及编程导论课程节选

In fact, I'm going to use only two dimensions for most of the time because the difference between one dimension and two is very great.

实际上,大多数时候我只考虑二维的情况,因为一维和二维的差别很大

耶鲁公开课 - 基础物理课程节选

We have to build this whole new detector, is this really the best use of my time?

最后测到了132000个alpha粒子，我们还要找什么？

麻省理工公开课 - 化学原理课程节选

And I would suggest palindrome as a great example of that. That's easy to think about recursively. It's much harder to think about iteratively. And you want to get into the habit of deciding which is the right one for you to use. And with that, we'll see you next time.

其它的问题可能用递归的方式,可以更好的解决,而直接思考可能很困难,这时你就得养成做出,正确选择的好习惯了,下周再见。

麻省理工公开课 - 计算机科学及编程导论课程节选

c We know it's very specific for light because in this equation is c, the speed of light. So any time you go to use this equation, if you're trying to use it for an electron, just ask yourself first, does an electron travel at the speed of light?

我们知道它只对光适用是因为在这个方程里有,光速，所以下次你们用这个方程前，如果你们要把它用到一个电子上，先问问你自己，电子的运动速度是光速吗？

麻省理工公开课 - 化学原理课程节选

So that means that we don't have to worry about things like wave functions when we're talking about Lewis structures, but because they're so simple to use and because they so often predict the electron configuration of molecules accurately, we end up using them all the time in chemistry, so it's very valuable to know how to draw them correctly and to know how to work with them.

因此这也就意味着我们在讨论路易斯结构的时候,不需要担心波函数之类的东西，但是由于路易斯结构不仅简单易用,而且用它来预测分子的电子排布,经常可以得到非常精确的结果，结果我们在化学中一直都在用它，因此知道如何正确地画出并运用,路易斯结构是非常有价值的。

麻省理工公开课 - 化学原理课程节选