But first,we talk to some Americans who have retired from their professional lives but still work hard to help others.

VOA: special.2010.07.16

I mean, they have no idea how hard we work, and look at this gigantic split infinitive, to dramatically help.

他们不知道我们有多么努力地工作，注意到这之间的巨大鸿沟，会有很大的帮助。

麻省理工公开课 - 固态化学导论课程节选

So I just sit in there and work on, work on the sounds that are hard for my English tongue to produce.

有一些和英语发音不同的地方让我感到很难，我会长时间地练习这些发音。

想学好英语吗？ - SpeakingMax英语口语达人

The Great Recession gave some mothers no choice but to work, as job cuts hit hard at men.

VOA: special.2010.04.23

This is the remarkable thing about so many of Milton's similes: they're always bursting out of whatever critical or theological constraints that we work so hard to impose on them.

这是弥尔顿的比喻中的亮点：,它们总是能从我们强加的,无论多批判多神学的束缚中,挣脱出来。

耶鲁公开课 - 弥尔顿课程节选

Madam C.J.Walker explained it this way: "If I have accomplished anything in life, it is because I have been willing to work hard."

VOA: special.2010.03.28

But it's those kinds of questions that, there's a little bit of spark, there's a little bit of a powerful force and there's just a lot of hard work to get from here to there.

但是问题是，那时候已经产生了一些火花，一些外在动力,只不过达成目标还需要大量的艰苦工作。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

The kinds of minerals in clay affect how soft or hard it is to work with.

VOA: special.2009.09.09

So they were quite amused that it was a woman that was speaking to them and telling them about how hard life was, doing that kind of work.

而之后却惊奇地发现,跟他们交谈的是个女人,这让孩子们感到很有趣，也就对这些工作越来越感兴趣。

麻省理工公开课 - 媒体、教育、市场课程节选

But he is hard at work. He and his team currently are trying to make algae that can change carbon dioxide back into fossil fuel.

VOA: special.2010.07.20

Somebody starts out poor and makes his way through hard work and dedication and effort to riches and success.

他白手起家,通过努力工作,奋发图强，最终得到荣华富贵。

耶鲁公开课 - 死亡课程节选

This is because my father rolls up his sleeves and prepares to work hard.

VOA: special.2010.05.02

You don't have to work very hard to figure out what these different facial expressions mean.

你不必努力地去学习,去辨析不同面部表情的含义。

耶鲁公开课 - 心理学导论课程节选

Helen Keller had to work hard to support herself after she finished college.

VOA: special.2009.11.15

They're efficient enough that you have to work hard to find opportunities, but not perfectly.

如果你付出足够的努力,还是能发现机会,所以市场并不完全有效

耶鲁公开课 - 金融市场课程节选

Yet the Mormons continued to work hard to make their settlement a success.

VOA: special.2009.06.04

In fact, if the other person is working hard, or is cutting back on their carbon emissions, you have every bit more incentive to not work hard or to keep high carbon emissions yourself.

实际上,如果其他人正在努力工作,或者正在尽量减少碳排量,你总会有想偷懒的动机,或者总是继续大量排碳

耶鲁公开课 - 博弈论课程节选

Today,people can visit this building to experience this mailman's hard work and creativity.

VOA: special.2010.04.14

So I mean, people can be really smart or have skills that are directly applicable but if they don't really believe in it, then they're not going to really work hard and they're not going to even if they're smart guy who doesn't have the relevant experience, they're not going to care enough to develop the relevant experience in order to succeed.

就比如说，一个人不仅聪明,而且也有拿来即用的技能,但是如果对于自己的事业没有认同感，他就不会,百分之百的付出,就算他是属于,缺乏经验但智力超群的那类人，他也不会有意识地,为了成功而积累自身经验。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

After a hard day's work, people gathered to tell each other funny stories.

VOA: special.2009.11.28

One reason it's been harder to identify stem cells is that they're so rare; the other reason is that it's hard to identify the characteristics of them and it's taken many years to work this out.

干细胞难以识别的原因之一是,这些细胞很少,另一个原因就是,干细胞的特征性蛋白难以识别,我们花了好多年去解决这个问题

耶鲁公开课 - 生物医学工程探索课程节选

Some people may need to take medicines before they work hard or exercise.

VOA: special.2009.07.28

Or perhaps, you could set a goal to lose weight and you could work very hard.

又或者，你制定了一个减肥的目标，你为此而努力坚持着。

I'm frustrated 课堂 - SpeakingMax英语口语达人

Work was hard to find in any of the cities in Europe.

VOA: special.2010.05.13

There's been a lot of work done on these over the years, but in fact, it's pretty hard to invent a good hash function. So my advice to you is, if you want to use something was a hash, go to a library. Look up a good hash function.

已经做过了很多的尝试和努力,但是事实是，很难发明出一个好的哈希函数,所以我给你们的建议是,如果你们想使用哈希功能,到函数库中查找一个好的哈希函数。

麻省理工公开课 - 计算机科学及编程导论课程节选

After a hard day's work, people gathered to tell each other stories.

VOA: special.2009.02.21

why did I work so hard in order to get into this place?

我为什么要拼命入读这所学校？

哈佛公开课 - 幸福课课程节选

He decided to overcome his physical weaknesses through exercise and hard work.

VOA: special.2010.08.05

He constantly warns his son, who was kind of an n'er do well, that, "You better work hard, " Or, "You better work a little harder and pay more attention to what you're doing.

他不断提醒那一事无成的儿子,"你要加倍用功,哪怕只是稍微用点心,对你做的事要更上心

耶鲁公开课 - 欧洲文明课程节选

But also to teach him discipline and to work hard and to study hard

但还要教会他纪律、努力工作和好好学习，

要成为好爸爸 - SpeakingMax英语口语达人