Before then,the same trip might have taken up to six months.

VOA: special.2009.02.21

I should have also mentioned another really important information technology that developed in the nineteenth century was the Postal Service, although we had mail before then.

我应该也提到过,另一个产生于19世纪的,非常重要的信息技术,就是邮政服务，虽然我们在此之前就有信件往来。

耶鲁公开课 - 金融市场课程节选

and then I worked in an auction house; "Christie's", for a year before applying to come back to graduate school.

在我申请研究生院之前我还在佳士得拍卖行工作了一年。

图书馆经常人很多 - SpeakingMax英语口语达人

Before then, the largest crowd ever in Washington was 1,200,000 people.

VOA: special.2009.01.24

And now, if I'm touching mouse pointer, we saw that Boolean expression before, play sound meow, wait a couple of seconds, and then just keep checking.

现在，如果我们碰下鼠标指针，起初我们看到一个布尔表达式，播放猫叫的声音，等几秒钟，然后如刚才那样做检测。

哈佛公开课 - 计算机科学课程节选

Before then,most of the immigrants came from central and northern Europe.

VOA: special.2010.05.20

One tip about this, try to identify all the dominated strategies of all players before you delete, then delete.

这里有一个窍门,在剔除之前试着找出,所有参与人的劣势策略,然后再剔除它们

耶鲁公开课 - 博弈论课程节选

Some political analysts argue that the issue is unlikely to gain any traction before then, especially if concerns over the near 10 percent unemployment rate and health care continue to dominate the political agenda.

VOA: standard.2010.03.21

And then I ask you do you think this's the same train as the train we pointed to before.

之后我问你,你认为这辆火车,和之前看到的是同一辆吗。

耶鲁公开课 - 死亡课程节选

If vaccine supplies are limited, then the committee says two groups of children should be vaccinated before other children.

VOA: special.2009.08.05

That doesn't solve the problem we had before though Then I'm going to append it, and keep the last change for future use.

这样没有解决我们之前的问题,所以我要给它加上一个值，让上一次的变化能够用到未来的例子中。

麻省理工公开课 - 计算机科学及编程导论课程节选

LCROSS will then study the soil thrown up to ten kilometers above the lunar surface before it too crashes into the moon.

VOA: special.2009.09.30

He said Americans would always build a house but then move before they put a roof on it.

他说,美国人盖房子,总是在还没有盖上屋顶时就搬走了

耶鲁公开课 - 美国内战与重建课程节选

That leaves just four. I want to see the last one fall before it gets dark.Then I'll go,too."

VOA: special.2009.08.01

Now we know that Milton was blind probably well before the time he began writing Paradise Lost, and therefore, of course, he was then unable to read.

现在我们知道弥尔顿很可能失明了,这早于他开始写《失乐园》的时间，因此，他不能通过眼睛阅读。

耶鲁公开课 - 弥尔顿课程节选

The team then compared those records to weather conditions in the twenty-four hours before the hospital visits.

VOA: special.2009.03.18

Then they said, I'm going to ask you a question but before you answer the question I'm going to spin a wheel of fortune.

他们说,接下来我要问一个问题,但是在你们回答之前,我会转幸运轮盘

耶鲁公开课 - 金融市场课程节选

He could turn off a light and then jump into his bed before the room got dark.

VOA: special.2009.01.24

The museum had a big palace, which is, as I said before, where the small boy, Louis XIV, lived, and then was burned in 1871.

我之前说过 卢浮宫里有一个很大的宫殿,路易十四小时候曾住在那里,这座宫殿后来在1871年被烧毁

耶鲁公开课 - 欧洲文明课程节选

This metal form is chemically treated before being covered with ink and then pressed onto paper.

VOA: special.2009.09.02

And before we do it, I should add one other thing: how, then, do we get these other notes up here, we get these other notes up here?

在此之前,我们先来看看这个,我们如何安排其它这些音符,放在这里吗

耶鲁公开课 - 聆听音乐课程节选

The mixture then goes through two more processes before it is shaped into a mold form.

VOA: special.2010.02.17

One of the things that I didn't mention before is that when you get this primary response and then the secondary response, if you looked at the antibodies that are generated during the primary response, again we're only looking at antibodies that bind to the particular antigen or vaccine that we have used for the priming.

还有一点我之前没有提及,当你获得初次免疫,以及再次免疫之后,如果你仔细观察抗体,观察那些在初次免疫中生成的抗体,这次我们同样只是观察抗体,那些与我们在初次免疫中所用到的,特定抗原或疫苗相结合的抗体

耶鲁公开课 - 生物医学工程探索课程节选

The Eagle has landed." NASA's plan had called for the astronauts to test instruments, eat and then rest for four hours before leaving the Eagle.

VOA: special.2009.07.15

And then,lo and behold it turns out that his widow, to whom he confessed various infidelities before expiring, was pregnant; indeed,he was the father.

之后,他的遗孀怀孕了,他在断气前向她承认曾经有过不忠,但他确实是孩子的父亲

耶鲁公开课 - 1871年后的法国课程节选

Another man in Seattle,Washington writes about his familys terrible experience fleeing first from China, then from Cambodia and Vietnam before arriving in the United States.

VOA: special.2010.03.03

So then, just like we saw, analogous to what saw just before, dS/dp it's T dS/dp at constant T.

就像我们看到的,就像我们刚才看到的一样，结果是T乘以恒定温度下的。

麻省理工公开课 - 热力学与动力学课程节选

Then,before a fourth vote could be taken, a delegate from Ohio asked to speak.

VOA: special.2009.07.09

That's correct. So her answer was, if it was a full parabola, then we know it would've been at the ground before I set my clock to 0.

她说,如果运动轨迹为一条完整的抛物线,那么它在我们所设定的零时刻之前,就已经落地了

耶鲁公开课 - 基础物理课程节选

We're also posting a practice exam for you to take, so after you're completely done your studying, it's good to have everything done before you take the practice exam, and then sit down just with this sheet here and your calculator, and ideally a timer, and make sure you can do the practice exam in the allotted amount of time.

我们还将给出一份模拟试题，因此在你完全复习好之后，最好先复习完,再做这份模拟试题，坐下来,只拿出这张表与计算器，最好还有个计时器，确保自己完成模拟题,在规定的时间内。

麻省理工公开课 - 化学原理课程节选