More recently, Marco Polo and Christopher Columbus discovered new lands while seeking to expand trade with spice-growing areas in Asia.

VOA: special.2009.05.19

He urged revival of the slave-trade in the late 1850s, and he developed a theory of what he called warranteeism--w-a-r-r-a-n-t-e-e-I-s-m.

他促成了十八世纪五十年代后期,奴隶交易的复苏,还自己发明了一套理论,名为抵押品主义

耶鲁公开课 - 美国内战与重建课程节选

So, if it's a four-year bond, it would trade at about $90, 6% so it would be yielding 6%.

所以，如果这是四年期的债券，那么它可能在大约90美元左右进行交易，因此它的收益率大约在。

耶鲁公开课 - 金融市场课程节选

Thirty years ago, the Federal Trade Commission found that Stanley Kaplan's program could raise SAT scoresbut only by about twenty-five points.

VOA: special.2009.09.17

The Dutch economy, the equivalent would be the decline of the Venetian economic power in the Mediterranean-- and trade with the East diminishes.

而荷兰经济的崩溃,有点类似于地中海威尼斯的经济下降,他们和东方的贸易往来也锐减

耶鲁公开课 - 欧洲文明课程节选

The National Park Service says that in eighteen twenty-two, trade along the Santa Fe Trail totaled fifteen thousand dollars.

VOA: special.2009.03.30

Same. -Lower Our trade and balance is now about 300 billion a year ? three years from now, higher, lower or the same?

持平，-减少,我国每年的国际收支逆差为3，000亿,3年后，是增加，减少还是持平？

斯坦福公开课 - 经济学课程节选

The Fulbright Teacher and Administrator Exchange Program offers a true exchange -- meaning two people trade jobs for a time.

VOA: special.2009.02.12

What good is it -- you'll remember -- what good is it, Milton asks, ; "to tend the homely slighted shepherd's trade"; that's, of course, the vocation of poetry if that shepherd-poet is just going to be struck down in his prime as Edward King had been?

大家可以看到，弥尔顿在这里发出了疑问，“进行平凡微不足道的诗歌创作“，又有何益;,当然，就田园诗人而言，诗歌的天命,是否在于如同爱德华金一般的英年早逝？

耶鲁公开课 - 弥尔顿课程节选

In South Korea, President Obama and President Lee Myung-bak discussed a free trade agreement signed by their governments two years ago.

VOA: special.2009.11.21

There is a debate among rich countries and developing countries about trade-related intellectual property rights.

发达国家和发展中国家,在贸易知识产权上存在着纠纷。

耶鲁公开课 - 公正课程节选

Both the anti-trust law and the Federal Trade Commission helped protect small business owners from the power of business giants.

VOA: special.2010.09.23

So in designing it, this was a trade-off that we made.

因此在设计的时候我们要权衡。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

A five-month federal investigation of the so-called flash crash suggested a single big trade may have been the cause.

VOA: special.2010.12.31

And there're trade-offs between both.

两者之间各有利弊。

麻省理工公开课 - 计算机科学及编程导论课程节选

But a government program that paid Americans to trade in old vehicles for new, fuel-saving models increased car sales in the summer.

VOA: special.2010.01.01

Not everybody had to be involved in creating food, and so that gave people more time to trade, to develop other products, to be involved in non-food pursuits and many, many more things.

不需要所有人都忙于制造食物,因此人们有空进行贸易,开发其它产品,以追求其他更多,而不单单是食品

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 said it was illegal for a trust or any other organization to interfere with interstate commerce -- trade among the states.

VOA: special.2010.06.03

Probably the best book written on this, particularly on the language of the domestic slave trade, is Walter Johnson's book called Soul by Soul, a book-- I highly recommend you read it sometime in your reading lives.

也许有一本书描写这点最生动,特别是在记述国内奴隶贸易的语言上,是沃尔特·约翰逊所著的,《灵魂的灵魂》这本书,我强烈建议在你的读书生涯中加进这本书

耶鲁公开课 - 美国内战与重建课程节选

So far,most of the trade-ins have been trucks and the majority of new purchases have been cars.

VOA: special.2009.08.07

And with this data, where students were able ; to implement last year their own E-trade-like website; whereby you have accounts and you log in your hand age of your users 10,000 virtual dollars and with them can they get stock quotes, by stocks, sell stocks and the like, all of this accomplished just after a few weeks time.

通过这些数据,学生们就可以做出类似电子商务的网站;,只要你有账号就能进入你的账户,里面有1万的虚拟美元,这样你就能去查询股票报价,进行买卖股票之类的事,这一切仅仅用了几个星期的时间就完成。

哈佛公开课 - 计算机科学课程节选

G-20 nations also face the issue of trade imbalances,like the one between the United States and China.

VOA: special.2010.06.25

Now, what we learn, both from archaeology and from references in the Linear B tablets is that they engaged-- these cultures engaged in trade to a significant degree.

现在,我们从考古学,以及B类线形文字刻板中的线索得知,这些文明中具有相当多的贸易因素

耶鲁公开课 - 古希腊历史简介课程节选

But it said the monopoly was in manufacturing -- not in trade or interstate commerce.

VOA: special.2010.06.03

That's a really a major trade-off in the application.

这就是我们进行调整后的结果。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

In two thousand one, sixty-eight percent of African rhino horns entering illegal trade were recovered.

VOA: special.2009.12.14

How do you deal with that trade-off where you absolutely need an ad sales force but at the same time, if one person at a time, you just can't say let's go out and hire five good engineers or five good ad sales people and not have them be great?

如何做出选择，如何取舍,当你急需一批销售人员，但如果只碰见一个合适的人选，你不只能因此去找,5个差不多的工程师,或者5个差不多的广告销售？

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

He said the United States offers some of the world's lowest barriers to trade -- and expects free and fair access to other countries in return.

VOA: special.2010.07.09

And there's trade-offs between both.

在两种语言之间我们需要做个权衡比较。

麻省理工公开课 - 计算机科学及编程导论课程节选

I'm not going to put Yale's entire portfolio in Google stock, I'm not going to go back and take Yale's entire portfolio to day-trade bond futures; in part, because it would be bad for me personally.

我不会用耶鲁的全部资产买谷歌股票,我也不会,用耶鲁的全部资产买债券期货,一方面是因为,这对我个人不利

耶鲁公开课 - 金融市场课程节选