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

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 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

"In the fair-trade system the farmergets a higher advance price and at the end of the year they also get bonus payments."

VOA: standard.2010.03.10

I was part of a huge conference last summer in West Africa on the end of the slave-trade in Ghana, and we had representatives we had people participating in that conference from 15 or 16 different African countries.

我去年夏天曾参加过西非的一个大型集会,纪念是加纳奴隶交易的结束,会议上有来自各国的代表,有15或16个非洲国家的代表,参与的这次大型会议

耶鲁公开课 - 美国内战与重建课程节选

The U.N.Conference on Trade and Development says eco-fashion brings in between $150 million and $200 million a year.

VOA: standard.2010.01.31

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

In order to participate in the plan, car buyers like Georgie need to trade in a car that is at least 10-years old.

VOA: standard.2009.05.18

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

Thornton says the new amendment to the Lacey Act is a wake-up call for anyone who wants to trade in the lucrative U.S.wood products market.

VOA: standard.2010.05.28

News of the widening trade gap, along with several other gloomy economic reports, contributed to a 2.5 - percent drop in the Dow Jones Industrial Average on Wednesday.

VOA: standard.2010.08.11

South Korean parliamentary opponents of a major free-trade deal with the United States got physical in a committee hearing room, but failed to prevent the deal from advancing toward ratification.

VOA: standard.2009.04.22

Campaigners say it has helped to shine a spotlight on the violent consequences of the trade in illicit diamonds - a spotlight they hope will remain even after the celebrities have left.

VOA: standard.2010.08.09

"Here in Britain, we drink a lot of tea, but only one in ten cups are fair-trade, which means we're paying a fair price to the tea growers in the developing world."

VOA: standard.2010.03.10

It is not clear what it will be able to do to help revive energy talks with Uzbekistan, Kazakhstan and Turkmenistan, During negotiations in the Czech capital,Prague, the three natural-gas producing nations were not convinced by E.U.offers of more trade and stronger transport links in exchange for their participation in a multi-billion-dollar gas pipeline, known as Nabucco.

VOA: standard.2009.05.11