The call is always given three times to prevent mistaking it for some similar sounding words.

VOA: special.2010.04.18

Now, I look around this room, I don't see anybody whose head is three times bigger than mine, so I know that you cannot digest everything the books have.

我在教室里扫了一遍,没看见谁的脑袋比我大三倍,我知道你们是不可能看完这本书的

耶鲁公开课 - 基础物理课程节选

If some group, let's say you have cholesterol of two hundred and your relative risk is established at one, and then if you have cholesterol two fifty your relative risk is two, that means you have twice the risk, so relative risk of two is twice the risk, three is three times the risk, etc.

比如说有一个组,胆固醇水平200,相对风险设为1,另一个组胆固醇水平是250,相对风险是2,即第二组的相对风险是参照组的两倍,相对风险是2代表两倍风险,3代表三倍风险,如此类推

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Research has shown AMD is two to three times more common among smokers than other people.

VOA: special.2010.03.09

And in fact, one of the lessons you may already be realizing with P sets is that things seem to take twice, three times, four times longer than you actually might think.

从习题集中你可能已经得出的一个教训就是,程序所花的实际时间往往是你开始以为的两倍，三倍，四倍甚至更长。

哈佛公开课 - 计算机科学课程节选

Although the president has visited the Gulf coast three times since the spill began, he is getting poor grades.

VOA: standard.2010.06.10

Now from the adult point of view, this is culinary because we know that we're in the world of folklore and that in folklore everything happens three times.

现在从成人角度来看，这是烹饪小说，因为我们知道,自己在一个民间传说的世界,而且在一个民间传说中事不过三。

耶鲁公开课 - 文学理论导论课程节选

This would involve a two-stage interceptor that is scheduled to be flight tested three times between now and the end of 2011.

VOA: standard.2009.07.15

Now, at this point I have to just confess, as I've confessed at other times before, the three is a claim about empirical science.

在这一点上我必须承认,像我之前承认过的那样,前提三是关于实证科学的

耶鲁公开课 - 死亡课程节选

"At a per-passenger-mile basis, rail is about three times as efficient as travel by car, in terms of fuel efficiency, and six times as efficient as travel by air, so there are pretty substantial pollution reduction benefits both in terms of greenhouse gases and other pollutants."

VOA: standard.2010.02.15

If they do make big bets maybe they get lucky once, or twice,or three times, but ultimately their luck is going to run out.

搏大了,可能会侥幸那么一次,两次或三次,但最终运气是会用完的

耶鲁公开课 - 金融市场课程节选

*2=6 So I have three times two is six.

由于。

麻省理工公开课 - 固态化学导论课程节选

Three, again, percentages, three times is great. But three times what?

倍多，但是3倍于多少呢？

普林斯顿公开课 - 国际座谈会课程节选

And our engineers constantly hear from other friends working for other Internet companies in Beijing--they living the most flashiest office spaces in Beijing and their salary is raised three times a year.

公司的工程师总是听到,在其他公司工作的朋友说，他们拥有北京最豪华的办公室,薪水一年涨三次。

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

s And what we find is we're going from about or exactly a 6 a nought here, to almost three times that when we're going from 2 s to 3 s.

从2s到,我们发现它，从6a0到大约增大了３倍。

麻省理工公开课 - 化学原理课程节选

The plan now is to have about a thousand and nine hundred something civilian people on the ground in Afghnastan by New Years Day which is about three times of we had last year.

现在的计划是说我们将要派大概1900平民到阿富汗,在新年之前,这个数量是去年的三倍之多。

普林斯顿公开课 - 国际座谈会课程节选

Cereal would be--a serving of cereal would be about the amount that would fit in a wine glass, but people think that you fill up a bowl and that becomes a serving, but a typical amount of cereal that people serve themselves might be two or three times what the ordinary size is.

这是一餐份量的麦片,放在酒杯里大概那么多,但人们认为满满一碗才是一份,人们通常所食用的麦片,是原来大小的二到三倍

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选