It began in April of nineteen ninety-four after a plane carrying the presidents of Rwanda and Burundi, both Hutus,was shot down.

VOA: special.2009.03.09

That's four items. Show up, sit down, and the first question is does anybody have a pen?

总共4件东西，你们来到，坐下，第一个问题是你们有带铅笔吗？

麻省理工公开课 - 固态化学导论课程节选

Well, there are four principal ways that composers signal to us the whereabouts of the down beat.

以下有四条主要途径,是作曲家用来告诉我们重拍在哪里的

耶鲁公开课 - 聆听音乐课程节选

And once he said: "Four-fifths of our troubles in this life would disappear if we would only sit down and keep still."

VOA: special.2010.12.23

But you don't know that there is an easy one for you down at number four 4 if you haven't bothered to look at number four.

但是你不知道,在数字4的时候会有一个简单的题目,如果你没有尝试去看数字。

麻省理工公开课 - 固态化学导论课程节选

Two and a half down. Faint shadow. Four forward.

VOA: special.2009.07.15

You could think, you have to think earnings are going to go up twelve-fold to get it down to four times earnings, which will take a long, long time.

你可能会想，你必然认为收益会上涨12倍,让它回落到四倍于原来收益的地方，会花费很长一段时间。

耶鲁公开课 - 金融市场课程节选

NASA officials counted down the seconds: five,four,three,two,one.

VOA: special.2009.07.08

The next time down I've got four versions.

八次，实际上。

麻省理工公开课 - 计算机科学及编程导论课程节选

Four years later, Beijing surprised the world by successfully shot down a satellite.

VOA: standard.2010.04.21

It dropped dramatically in the period from 1954-- this is these filled black bars refer to this axis, polio cases per 100,000 population dropped down to only three or four cases by 1956.

患病率在一九五四年后的,一段时间里急剧下降,该坐标轴上的这些黑色柱形图表明,到一九五六年,小儿麻痹症的发病率,已经降低至每十万人中仅三到四人发病

耶鲁公开课 - 生物医学工程探索课程节选

For the first four months of 2009, new car sales in Britain were down nearly 30 percent, so there is much hope the incentive plan can persuade some to purchase now.

VOA: standard.2009.05.18

We begin to know more about three or four hundred years down the road, when there appear buildings and settlements in the world later inhabited by the Greeks, as we know, to which we give the name Mycenaean.

约三四百年之后当这块希腊人聚居的土地,出现了建筑和住宅群,我们才开始对它有了更多的了解,并将其命名为今天人人皆知的"迈锡尼文明"

耶鲁公开课 - 古希腊历史简介课程节选

He writes down this four- to five-minute composition note for note in just one sitting.

他便一口气,逐个音符地,写下了这段四到五分钟的作品

耶鲁公开课 - 聆听音乐课程节选

The reason--unless you can take about eight hours to do it--because, the way you're going to do it is you're going to take a train that goes one hour and fifty-eight minutes to Paris, and then you're going to take another train that zips down here in about four hours to Bordeaux, but you're paying by kilometer.

除非你想坐八个小时的火车,因为,你要走的路是,坐上火车,先花一小时五十八分钟去巴黎,然后以很快的速度用四小时到这儿,波尔多,按公里计费

耶鲁公开课 - 1871年后的法国课程节选

Down here, I've just got two things to merge, and then I've got things of size two to merge and then things of size four to merge. But notice a trade off. I have n operations if you like down there of size one.

但是n的大小是不同的，是吗？在这里我们只要合并两个元素,然后是合并长度为2的列表,接下来是合并长度为4的列表,但是观察一下之间的权衡关系。

麻省理工公开课 - 计算机科学及编程导论课程节选