"If by December, there is not an in-depth change by the Iranian leaders, sanctions will have to be taken,".

VOA: standard.2009.09.25

So, if you by chance, I know it's very rare, but if by chance you don't get the class you can always follow up later.

如果你们偶然，我知道不太可能，但是如果不小心你们错过了某节课,你们就可以在之后补回来了。

麻省理工公开课 - 固态化学导论课程节选

But is it still invisible if by invisibility we mean can't be detected?

但是如果无形是指不能检测,灵魂还是不是无形呢？

耶鲁公开课 - 死亡课程节选

No future president would be safe, they said, if opposed by a majority of the House and two-thirds of the Senate.

VOA: special.2010.01.28

And, by all means, if you are scheduled to attend class at 11:00, please take the test at 11:00.

当然，如果你安排到11：00参加考试的话，请在11：00参加考试。

麻省理工公开课 - 固态化学导论课程节选

For example, if a wife leads her husband by the nose, she makes him do whatever she wants him to do.

VOA: special.2009.09.13

And, if you felt you were convinced by my reading of that iconography in these passages, then you want to think about why that's convincing.

如果你觉得我读的,片段中的形象很有说服力，那么你们去想想会什么会信服,作为读者。

耶鲁公开课 - 1945年后的美国小说课程节选

If you lined up all the stores side by side, they would cover a distance of almost seven kilometers.

VOA: special.2010.08.13

But frankly, I'm convinced, insofar as I'm convinced of anything, that if one doesn't live by that, nothing of any interest is going to happen.

不过，坦率来讲，我相信，或者说，我确信，如果一个人不相信这一点，那么他的艺术创作只会平淡无奇。

普林斯顿公开课 - 人性课程节选

If you travel by bus in Sao Paulo,Brazil these days your vehicle may be powered by hydrogen fuel cells.

VOA: special.2009.09.07

The Republic asks us, what would a city be like if it were ruled by Socrates or someone like him?

理想国》要我们考虑，城邦的面貌,如果它是由苏格拉底或像他的人所统治？

耶鲁公开课 - 政治哲学导论课程节选

They will earn extra points in the Race to the Top if they approve the standards by August second.

VOA: special.2010.07.22

Linear algorithms tend to be things where, at one pass-through, you reduce the problem by a constant amount by one. If you reduce it by two, 1 it's going to be the same thing.

有问题么？,线性复杂度的算法，当进行了一个,常量级步数的操作的时候，将问题的规模缩小了一个。

麻省理工公开课 - 计算机科学及编程导论课程节选

As a boy,Carl said he knew if it was time to go to school by the sound of a train.

VOA: special.2009.11.01

For your lifeblood I will surely require a reckoning; So if you are killed by a beast or a human, there will have to be a reckoning, an accounting.

你们的血;,无论你是被人或者兽所杀，我必将讨他的罪。

耶鲁公开课 - 旧约导论课程节选

"Worst-case scenario, if I don't find a job by the end of August, I move back with my parents."

VOA: special.2010.06.11

By the way, if this is beginning to sound like a wrestling match, I don't mean it to.

顺便说一下,我可没有把这个博弈,弄得像摔跤比赛的意思

耶鲁公开课 - 博弈论课程节选

Missus Graham had to decide if the paper would publish the stories and risk possible punishment by the government.

VOA: special.2009.04.26

If you're not updating some variable by incrementing it or decrementing it -- if you're not changing anything, presumably the conditions are never going to evaluate to false or the opposite, so you're just going to have an infinite loop, which might be your goal, but odds are it's not.

如果你不通过增加或减少它来改变一些变量,-如果你不改变什么，大概那个条件永远不会变成错误的,或相反的，所以你将得到一个无限循环，那可能是你的目标，但可能也不是。

哈佛公开课 - 计算机科学课程节选

If confirmed by the Senate, the fifty-year-old Kagan would be the youngest justice on the current Supreme Court.

VOA: special.2010.05.15

So if you divide by $10 million, that's a lot of money for each employee.

如果将1000万平分，每个人都能拿到一大笔钱。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

James Bartlett said that museums have the right to make decisions about exhibits, even if some art is considered objectionable by critics.

VOA: special.2010.12.15

If they're paying me by sending money and calling it a dividend it's the same as if they say they're repurchasing my shares.

如果他们寄钱来,称之为股利,和称之为股票回购是没有区别的

耶鲁公开课 - 金融市场课程节选

But if the monsoon is very strong, the trees affected by that monsoon might put on a wide ring for that year.

VOA: special.2010.05.25

So, I'm not going to waste your time by asking what happens if you put it in.

我不会问你们把式子带进去以后怎么算,这完全是浪费时间

耶鲁公开课 - 基础物理课程节选

Some people worry that officials could take their land if it becomes polluted by oil in a storm.

VOA: special.2010.06.04

For example, what if I activated this cell by encouraging it to produce this particular ligand?

如果促使细胞产生这种特定的配体,以此来激活细胞 会出现什么结果

耶鲁公开课 - 生物医学工程探索课程节选

And,they can discover the time of death to see if it matches information given by suspects and witnesses.

VOA: special.2010.05.05

I could never make a merit of being caviare to the crowd the way my quasi-friend Pound does. I want to reach out, if it were a thing I could do by taking thought.

我不能因为创作大众的阳春白雪而夸耀,就像我的半个朋友庞德一样，我希望伸展开来，如果这是我动脑经就能完成的事。

耶鲁公开课 - 现代诗歌课程节选

Sometimes if the question is asked by enough people, we'll respond to it publicly.

如果某个问题问的人数较多，我们会公开回答。

哈佛公开课 - 幸福课课程节选