Recently,the television cable network C-Span carried out its second study about the greatest American presidents.

VOA: special.2009.02.27

But if you think of the time span about 900 to 700 B.C., that is, when these changes are taking place.

但是如果你发现它发生在,大约公元前900年到700年之间时

耶鲁公开课 - 古希腊历史简介课程节选

I've made a lot of really good friends in a really short time span.

在很短的一段时间里，我就交了很多好朋友。

斯坦福的奖学金 - SpeakingMax英语口语达人

They will not be met easily or in a short span of time.

VOA: special.2010.01.23

Instead, he's known for the development of an encompassing theory of mind, one that he developed over the span of many decades.

相反，他却因为提出了极具包容性的,心理理论而闻名天下，这个理论是他通过数十年的研究才提出的。

耶鲁公开课 - 心理学导论课程节选

It is the largest single-span concrete arch bridge in the Western Hemisphere.

VOA: special.2010.10.27

People lived shorter lives and so they didn't get far enough into the age span to suffer from the chronic diseases that people are suffering more today.

当时的人寿命比较短所以他们,活不到现代人那么长,长得足以患上那些慢性疾病

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

They are serious and they are many. They will not be met easily or in a short span of time.

VOA: standard.2010.01.15

So one of the reasons there is a huge increase in life span is because people aren't dying of things that they would have in prior years.

寿命范围显著增长的一个原因是,人们不再死于,以前那些致死的东西

耶鲁公开课 - 生物医学工程探索课程节选

But since the St.John's curriculum aims to span almost all of Western culture, students study every branch of the liberal arts - including music.

VOA: standard.2010.05.12

God saw that he had to limit the life span of humans, or risk creating an enemy that was nearly equal to him.

上帝发现他限制了人类的寿命，否则就是冒险创造了与他平等的死敌。

耶鲁公开课 - 旧约导论课程节选

Here in the U.S., the rate of obesity doubled over a span of 16 years.

VOA: standard.2010.08.10

Because these molecules can span across the membrane from outside to inside, they're in just the right position to take messages that they receive from outside the cell and transmit them through the membrane into the cells internal apparatus, and that's what they do.

因为这些分子能穿过细胞膜,连通细胞内外,它们所在的位置非常适于接受信息,它们能将外界获得的信息,通过细胞膜传递给细胞器,这正是它们的功能

耶鲁公开课 - 生物医学工程探索课程节选

At a news briefing, Assistant Secretary of State for South and Central Asian Affairs Robert Blake said the sides hope to conclude two related agreements during the Clinton visit, which will span four days.

VOA: standard.2009.07.15

The expected life spans increased dramatically in the last couple of hundred years until now, for people that were born when you were born you can expect to live to be 80 years old, a doubling in life span, fairly dramatic.

从几百年前到现在,预期寿命显著增长了,你们同期出生的那批人,能够活到八十岁,预期寿命增长了一倍,令人印象深刻

耶鲁公开课 - 生物医学工程探索课程节选

They are RNA molecules but they have at some points in their life span, they have amino acids attached to them.

这些是如假包换的RNA分子,但在其生命周期的特定时间,它们会携带一个氨基酸分子

耶鲁公开课 - 生物医学工程探索课程节选