If you are tired after hitting all those nails on the head, then it is time to hit the hay.

VOA: special.2009.09.20

What was neat about it is before that time, the predominant species to use for air conditioning or refrigeration was ammonia.

在这之前是很整洁的，之前最主要的用于空调或者冰箱的,物质是氨。

麻省理工公开课 - 固态化学导论课程节选

I guess, I, I think the reason I did is because about the time to do it is college, I think.

我想，我认为我这么做，是因为大学该是时候这么做了。

留学的优点是？ - SpeakingMax英语口语达人

Jerry Glover says it is time to put natural plant communities back in control of our land.

VOA: special.2010.09.22

Well, if this thing is going to vibrate for any length of time it better be a standing wave.

好的，如果它在任意时间振动,那它就是驻波。

麻省理工公开课 - 固态化学导论课程节选

Now it is time to come back to the world of the twenty-first century.

VOA: special.2010.02.03

so it is as crucial as ever to understand theory At the same time, we have the vantage point of, I suppose, what we can now call history.

因此去理解理论一直以来都是至关重要的,以此同时我想，我们处在，历史的有利位置。

耶鲁公开课 - 文学理论导论课程节选

So it is time to play some of our favorite songs about this season.

VOA: special.2009.11.09

As we might put it somewhat misleadingly, what is it for "two" people to really be the same single extended-through-time person?

对于“两个“人、,如何才是同一个贯穿时间的人,可能有一些误导的观点？

耶鲁公开课 - 死亡课程节选

Hit the books is another way to saying it is time to study.

VOA: special.2009.09.20

Let's assume that we know that this thing is going to be paid, so it's a matter of simple time.

我们假设这份承诺会被兑现,这只是时间的问题

耶鲁公开课 - 金融市场课程节选

When a student's grades hit bottom it is time to hit the books.

VOA: special.2009.09.20

So what I'm saying now is it took a long time for this to solidify. And one of the things we think made it solidify was the development of codices,a codex.

所以这花了很长一段时间,才得以统一，我们觉得,使它统一的是抄本的出现。

耶鲁公开课 - 新约课程节选

"America,it is time to focus on nation-building here at home."

VOA: special.2011.06.25

But that's also nice, it lets you see how the recursive thing is simply unwrapping but the complexity in terms of the amount of time it takes is going to be the same.

它让我们看到了，在复杂度依照时间总数来看,没有变化的情况下,递归是怎么一步步的展开的,我欠你一个糖，谢谢。

麻省理工公开课 - 计算机科学及编程导论课程节选

"It is time to put a stop to this,sir.

VOA: special.2009.08.13

So part of it is trying to give yourself some time And I think the other piece is that it can often be very small thing.

所以说，你要给自己一些时间,另外，就是激发你发现灵性的,可能都是些很小的事情。

普林斯顿公开课 - 人性课程节选

Now it is time to dye the wool.

VOA: special.2010.08.02

This was known for a long time, but it took Mr. Einstein to figure out why nature is behaving in that fashion.

这一点在很早以前就人所共知了,不过是爱因斯坦先生解释了,大自然为什么以这种模式运行

耶鲁公开课 - 基础物理课程节选

Dr.Paul Offitt of Children's Hospital of Philadelphia says it is time to move on and find the real cause for autism.

VOA: standard.2010.03.23

It is a book that one of you will go back to time and time again and it will stick with you forever.

那是一本你们其中一人,会不断回顾的巨著,而且永世追随。

耶鲁公开课 - 政治哲学导论课程节选

It is time to save what we can and what we must and live within our means once again,".

VOA: standard.2010.02.01

Not to harp on the mathematical features of this, but cubing, AX*X*X you know, if you're starting to do AX star, X star, X, every time you want to cube some value in a program, it just feels like this is going to get a little messy looking, if nothing else.

不要总是说这个的数学特性，但是体积，你们懂的，如果你开始做，在一个程序中，每次你想算几个数值的体积，感觉它就变得,有一点凌乱的，如果没有其他的。

哈佛公开课 - 计算机科学课程节选

"It is time to do what is right, not for the next election, but for the middle class."

VOA: standard.2010.07.19

I keep waiting for somebody-- I think the time is right for somebody to come up with a theory and explain it by global warming.

我一直期待有人-,我认为是时候有人出现,用全球变暖来解释它

耶鲁公开课 - 古希腊历史简介课程节选

She told the gathering it is time to stop all the talk about gender parity, and to take steps to ensure it happens soon.

VOA: standard.2009.04.05

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

"It is time to stop holding workers laid off in this recession hostage to Washington politics."

VOA: standard.2010.07.19

And this is absolutely confirming that what is happening is what we would expect to happen, because we would expect the case of reality is that, in fact, some shielding is going on, but it's not going to be total shielding, but at the same time it's not going to be no shielding at all.

因为我们期望看到的真实情况是,事实上,一些屏蔽发生了,但它不是完全的屏蔽，但与此同时它也不是，一点屏蔽也没有,如果我们从实验中得到电离能是多少。

麻省理工公开课 - 化学原理课程节选

It's - a suture or a stitch has to hold the wound closed so it has to have certain mechanical strength and imagine the problem of making something that's dissolvable so it disappears but also is strong enough to hold a wound closed reliably for a length of time.

能够拉紧切口的缝合线,就必须具有一定的机械张力,大家想像一下制造这种缝合线的难度,身体组织不仅要能吸收这种缝合线,而且这种线必须有足够的张力,一定时间内能够拉紧切口

耶鲁公开课 - 生物医学工程探索课程节选