More than fifty million copies of Doctor Spock's "Baby and Child Care" book have been sold since it was published.

VOA: special.2009.03.15

It had been my accidental reading of fiction and literary criticism that had invoked in me vague glimpses of life's possibilities.

我偶尔会读小说和文学评述,这让我隐约地窥探到,生活的可能性，“

耶鲁公开课 - 1945年后的美国小说课程节选

Sure, voter turnout has been dropping, and it might appear that voters are apathetic about the political system.

是啊，现在参与投票的人越来越少，看起来投票人对政治体系相当冷漠。

对于义务投票制 - SpeakingMax英语口语达人

The epidemic might have been even worse had it not been for the father of the actress Glenn Close.

VOA: special.2009.02.23

Many self learners have also visited the site and told us some of the ways they've been using it.

很多自学者也浏览了我们的网站,告诉了我们,他们是如何使用这个网站的。

麻省理工公开课 - 媒体、教育、市场课程节选

Or it could have been used to hold the shape of the shoe while it was not being worn.

VOA: special.2010.08.03

Why has it been so hard and why does it continue to be difficult to identify these pluripotent cells within tissues?

为什么会那么难呢,为什么在组织中识别多能干细胞,始终困难重重呢

耶鲁公开课 - 生物医学工程探索课程节选

The bill seemed to curl up as if it had been rolled and stuck into the end of a gun barrel.

VOA: special.2009.11.14

Because it has been said that each American soilder cost us one million dollars a year Ambassodor is so much cheaper.

有人说一个美国士兵每年要花费一百万美元,相比之下，大使是如此廉价。

普林斯顿公开课 - 国际座谈会课程节选

Huck's heart leads him to do the right thing, even when everything he has been taught tells him it is wrong.

VOA: special.2010.03.21

And scientists have been working on this for years and there's been progress, but it's still a very difficult challenge.

科学家们对此已经研究很久了,并取得了进展,但仍有很大挑战

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

It has been in the news over the past months during a disputed takeover negotiation with the American company Kraft Foods.

VOA: special.2010.02.17

So you will sometimes see as you are reading the text, they will sometimes refer to Horeb instead of Mount Sinai, or you'll see the two names used interchangeably. And it's been the theory of scholars that that's because it comes from a different source.

所以，有时在你阅读的文本中，它会提到和烈山,而不是西奈山，或者你会看到这两个名字,互换着用，根据学者的理论解释，这是因为,这两个名字来源于不同的资料。

耶鲁公开课 - 旧约导论课程节选

It has been about forty years since the United States Food and Drug Administration approved a drug especially for treating lupus.

VOA: special.2010.06.15

Who here has been making it since the beginning of the semester on under six hours a night?

谁从本学期开学到现在,每晚睡不到六小时的？

耶鲁公开课 - 心理学导论课程节选

Or the writer could show how the subject may be understood better or in a different way than it has been.

VOA: special.2009.04.30

Generally it has been inflationary after 1933; central banks have generally gradually allowed prices to rise.

大体上在1933年之后，一直处于通货膨胀时期；,中央银行大都,渐渐将价格抬高。

耶鲁公开课 - 金融市场课程节选

He had been feeding it milk from a donkey, and he believed he could raise the baby just fine.

VOA: special.2009.06.06

So it might be that the whole question we've been focusing on, What does it take to survive?

也许我们一直关注的问题，存活下去的标准是什么？

耶鲁公开课 - 死亡课程节选

It has been more than two years since he has been to a hospital emergency room because of asthma.

VOA: special.2009.07.28

Actually the City of Corinth wouldn't have been taxed because it was a Roman colony, and one of the benefits of being a Roman colony is that you didn't have to pay taxes, or at least the citizens didn't have to pay taxes.

事实上科林斯城以前从不收税,因为它是罗马的殖民地，成为罗马殖民地的一个好处是,不必交税，或者至少公民不用付。

耶鲁公开课 - 新约课程节选

It has been produced in all fifty American states as well as in sixty-seven countries, from Afghanistan to Zimbabwe.

VOA: special.2010.05.24

the message of the positive psychology movement is to remind our field that it has been deformed.

积极心理学运动提醒我们,这个领域已与过去不同。

哈佛公开课 - 幸福课课程节选

It has been said that Napoleon was successful because he knew the field position of every one of his guns.

VOA: special.2009.11.01

Now this is a good place to start, because we are very familiar with ionization energy, we've been talking about it it's that minimum energy required to remove an electron from an atom.

现在这是一个开始下面内容的好地方，因为我们已经很熟悉电离能了，我们从很久以前就一直在讨论,它是从一个原子中,拿走一个电子所需要消耗的最低能量。

麻省理工公开课 - 化学原理课程节选

It had been almost ten years since the last major soccer league in the United States had closed down.

VOA: special.2010.06.02

So, a lot of it has been word of mouth.

所以很多都是口口相传。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

"As the years passed, most Americans were able to return to life much as it had been before 9/11.

VOA: special.2009.01.17

But no action has been taken on it.

但还没有付诸于实践。

普林斯顿公开课 - 人性课程节选

It is, needless to say, being a bright, brilliant idea that one guy thought of, it has been assaulted on all sides and there is plenty of controversy about it.

况且这还是一个人在千思万想后,所总结出的辉煌又灿烂的智慧,这些理论受到来自各方的抨击,并且存在着诸多争议

耶鲁公开课 - 古希腊历史简介课程节选