This happens when an official language is used more often and children stop learning the local language of their parents.

VOA: special.2009.12.02

It's called this just because it's an electron that results when an electron absorbs a photon's worth of energy, so thus it's a photoelectron.

之所以这样称呼是因为,当一个电子吸收,一个光子的能量的结果，因此它是一个光电子。

麻省理工公开课 - 化学原理课程节选

And then I want to work on an organic garden when I'm older though,

然后等我年纪大了，就去有机花园工作，

想要个农场 - SpeakingMax英语口语达人

Van Buren had been president for just a few days when an economic crisis and a political storm struck the country.

VOA: special.2009.01.01

We should also notice that... I should also mention that there're other metaphysical views about what goes on when an object exists over time.

我们应该注意到。,当一个物体,它的存在是贯穿时间的,还存在其他的形而上观点。

耶鲁公开课 - 死亡课程节选

It ended when an allied force of American,British,French,German and Japanese soldiers reached Beijing and ended the Boxer occupation.

VOA: special.2010.07.29

When an action potential comes down this pre-synaptic axon, when it reaches this point here, it sets off the process of these vesicles dumping their content into the synaptic cleft.

当动作电位到达轴突的突触前膜时,当到达这一点时 小泡就将其内含物,排放到突触间隙中去

耶鲁公开课 - 生物医学工程探索课程节选

Otherwise,he said, there might come a time when an angry public would demand radical and sweeping changes.

VOA: special.2010.05.20

Now in the course of this, a student asked a very good question that I should have pointed out a long time ago, and that is: when an orchestra plays or an ensemble plays and they're looking at their music and they're reading their music, do they play a chord?

在这期间，我本该早就提起的，由一个学生提出的非常好的问题是，当管弦乐队演奏或合奏团演出时,他们各个盯着并读自己的那部分乐谱，他们奏出和弦了吗？

耶鲁公开课 - 聆听音乐课程节选

Soldiers often say, We GId the place. And when an area looks good, soldiers may say the area is GI. Strangely,though, GI can also mean poor work, a job badly done.

VOA: special.2010.03.07

And when you have an optimal substructure and the local solutions overlap, that's when you can bring dynamic programming to bear.

当你得到一个最优子结构,但局部解决方案有重跌时，你就可以引入动态编程,来解决这个问题了。

麻省理工公开课 - 计算机科学及编程导论课程节选

"So,when an event like this occurs, it is incumbent upon a Democrat to react quickly and decisively, and Obama failed to do it."

VOA: standard.2010.01.06

When we have an isolated system, the criterion that determineswhether something happens spontaneously is the entropy has to increase.

对于孤立系统,决定一个过程是否自发发生的判据为：,熵必须增加。

麻省理工公开课 - 热力学与动力学课程节选

President Medvedev arrived in capital city of Makhachkala as two people were killed when an explosion ripped their car apart in a Dagestani village.

VOA: standard.2010.04.01

How can you write an original poem when your literary consciousness is essentially made up of the memory of all the things that you've read before?

你怎么能说自己写的是原创的诗,当你的文思,主要是由你以前阅读积累下的记忆,组合成的呢？

耶鲁公开课 - 弥尔顿课程节选

On Tuesday,Aung San Suu Kyi was convicted of violating her house arrest following an incident in May when an American entered her lakeside home uninvited.

VOA: standard.2009.08.14

4 So even if the correct mathematical answer is 1.4 or whatever, when you divide an int by an int, you only have room in that variable, in the response for an actual integer.

所以即使那个正确的答案是4,或别的数值，当你用一个整型数除以一个整型数，在那个变量的返回值里，只有,存储一个整型数的空间。

哈佛公开课 - 计算机科学课程节选

But children in developing nations lived under the constant risk of infection until more recently, when an international service club took aim at eliminating the disease.

VOA: standard.2010.08.02

You have a little more pressure in grad school, but sometimes that means when you're an undergrad your advisor will decide to put you on projects that maybe when you look at them seem a little bit silly.

那就是你们没有，要做出重大发现,或取得重大成就的压力,你们在研究生时候会有些压力,当然有时候这意味着。

麻省理工公开课 - 化学原理课程节选

When an old friend moved to Huntington Beach,California - a Pacific coast city nicknamed Surf City,USA - he realized it was time to live his dream.

VOA: standard.2010.08.04

So I'm just curious you got your PHD from Harvard, ; you undergraduated at Harvard; tell me starting out, what fascinated you when you were an undergraduate at Harvard.

不过我很好奇，您本科是在哈佛大学，在哈佛毕业;,能不能谈一下，是什么,让您在哈佛大学时充满激情呢。

普林斯顿公开课 - 人性课程节选

"When an individual is being silenced, we aim to be her voice."

VOA: standard.2010.05.22

Indeed, I want to emphasize again, it is an unusual outcome when they end up with democracy.

实际上 我想强调一下,他们最终导致了共和纯属机缘巧合

耶鲁公开课 - 古希腊历史简介课程节选

And particularly labor market numbers, unemployment, and unemployment lags recovery - so even when an aggregate recovery starts, those numbers are not going to turn around immediately.

VOA: standard.2009.03.10

It's an open question whether you'll believe it when this class comes to an end, but I'd be surprised if many of you believe it now.

即使到课程结束时,能否接受这个观点,依然是你们的自由,相反,你们要现在就能接受,倒是会让我感到很奇怪

耶鲁公开课 - 心理学导论课程节选

There are two kinds of strokes. An ischemic stroke happens when a blood vessel in the brain gets blocked.

VOA: special.2009.09.22

This is what I realized when I was an undergrad here.

这是我在本科生阶段所认识到的。

哈佛公开课 - 幸福课课程节选

It is cut to the chase. She heard that expression when she attended an important meeting of one company.

VOA: special.2010.07.25

There will be an option when you pull up the tab for this particular course if you go to the course website and that will link you right to the course website.

当你们点击课程标签时,有个登陆这门课网站的选项,那个链接可以转到课程网页

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

He also had the idea that he would make it narrow enough so that when you're boarding an airplane you can still roll it down the aisle of the airplane-- it just fit perfectly.

他还想到要将把手弄的窄一点,以便登机进通道的时候,还能拖着箱子走-,这非常符合当时的需要。

耶鲁公开课 - 金融市场课程节选