Professor Aicher explains that many composers have exciting premieres, where their music is played in public for the first time.

VOA: special.2010.07.12

And I don't know why, but since time immemorial that is the way computer scientists have drawn trees.

叶子是在最下面的，我不知道为什么,但从记事以来他们就是这么画树的,这也许就是为什么我们。

麻省理工公开课 - 计算机科学及编程导论课程节选

so that's great that a lot of people have enough time to be in something that's not math or science related.

很多人投入了时间，来做与数学或科学无关的事情，这真的太好了。

积极参与俱乐部活动 - SpeakingMax英语口语达人

At the time, scientists believed that a person at the top of the mountain would only have enough oxygen to sleep.

VOA: special.2010.06.30

But at the same time we might have very different experiences and that was amplified with students coming from different cultures altogether.

但与此同时,我们的经历却非常不同,而这一点因为同学们各自不同的,文化背景又被扩大化。

普林斯顿公开课 - 人性课程节选

Other scientists have shown that sun spot activity can be measured in periods of time that last about eleven years.

VOA: special.2009.09.29

Now this isn't the first time that we have in Milton the representation of the turning of a person to marble.

这不是第一次,在弥尔顿的表述中把人向石头转换。

耶鲁公开课 - 弥尔顿课程节选

That way,H.I.V.-infected women could have plenty of time to get the pouch from a health care provider early in their pregnancy.

VOA: special.2010.05.24

A covalent bond is any time we have a pair of electrons that is shared between two different atoms.

所谓共价键就是我们有两个原子,共用一对电子。

麻省理工公开课 - 化学原理课程节选

"The number of young adults that have finished high school is also now at a record all-time high.

VOA: special.2009.11.19

So it took a long time for the twenty books that we have to get settled on. And we'll talk about how that actually happened,also,still.

所以很长一段时间之后那27本书,才最终被确定下来，我们会谈及,那是如何实现的。

耶鲁公开课 - 新约课程节选

If you have any sort of a mass or growth in your neck at the same time, that would be very suspicious."

VOA: special.2009.09.02

So I think that it's more like how you spend your time doing stuff to have an answer than like something that I've learned specifically from college.

这事的关键就在于,如何支配时间,而不在于习得的具体技能。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

Many people think that the Industrial Revolution was the first time people began to have a major effect on the earth's ecology.

VOA: special.2011.04.26

There have been fundamental changes through time that make the role of the central bank evolve and change through time.

试图保持系统的稳定,随着时间的发展，基本的改变发生,使得中央银行的角色演变。

耶鲁公开课 - 金融市场课程节选

Studies have shown that over time, most humans need eight to eight and a half hours of sleep for the best health.

VOA: special.2009.08.26

It's exercising a set of muscles that a lot of you have not spent a lot of time exercising.

它用到的一些肌肉,是你们中大部分人平时没怎么用到的。

耶鲁公开课 - 死亡课程节选

Only three countries have stayed in the top ten for the lowest male death rates all that time.

VOA: special.2010.05.05

If you have been investing in the time that I have asked you to, you will pass handily.

如果这次你在我要求你的时间已经调研过,你会轻松的过的。

麻省理工公开课 - 固态化学导论课程节选

Beets much larger than that can be tough and have to be cooked for a long time.

VOA: special.2010.03.02

So historically, the course is a lot of sophomores who, like me perhaps, are realizing that they finally have time to explore beyond their own interests.

从往年数据上可以看出，上这个课程的大都是大学二年级的学生，可能跟当时的我一样，开始认识到我们终于有时间,来探究我们兴趣以外的事情。

哈佛公开课 - 计算机科学课程节选

But learning so much of it in such a short time, that's a big scramble -- and they have to know it from memory."

VOA: special.2011.07.11

So right in the packaging of this novel that we have today this cover has changed over time nevertheless, even today, that very Catholic iconography is right on the front of the cover.

所以对于我们的这本书,虽然封面随着时间一直在改变,但是即使是今天，天主教的肖像画依然,出现在了封面的中央。

耶鲁公开课 - 1945年后的美国小说课程节选

Hospice care helps people whose doctors confirm that they have only a limited time to live.

VOA: special.2009.02.10

Again, it shows how much things have changed during that period of time.

这显示了那期间,事情发生了多大变化

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

"I will not waste time with those who have made the calculation that it's better politics to kill this plan than to improve it.

VOA: special.2009.09.12

But people died typically of either infectious diseases or they died during childbirth, or they might have died at old age which would have been 50 or so at that time.

那时的人要么死于传染病,要么在分娩的过程中死去,或者在他们大约五十岁左右的时候,死于衰老

耶鲁公开课 - 生物医学工程探索课程节选

Researchers have found that working together in the severe environment saves them time and money.

VOA: special.2009.06.03

It's true, these questions have been debated for a very long time but the very fact that they have recurred and persisted may suggest that though they're impossible in one sense, they're unavoidable in another.

诚然，这些问题争论已久,但正因为这些问题反复出现,也许表明，虽然在某种意义上它们无法解决，但另一种意义上，却又无可避免。

耶鲁公开课 - 公正课程节选

We have a lot of potential that over time with we fix stone of voices with being part of our culture that very often these limitations are put on top of us just like the excess stone.

但是渐渐地受到外部文化压力,像多余石料一样，把我们禁锢起来了。

哈佛公开课 - 幸福课课程节选