NASA is hoping to start flying as soon as possible to close the gap in the U. S. manned space program.

美国宇航局希望尽快开始飞行，以尽可能结束美国载人航天计划的时间间距。

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Stanford will start distributing the course for free as a video podcast through iTunes U.

斯坦福将开始陆续把这个课程以视频播客的形式发布到iTunes U上。

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Now, some economists have suggested that allowing more foreigners into the U. S. -- say, an immigrant who buys a house in exchange for a green card -- would actually help jump-start the economy.

如今，一些经济学家建议，允许更多外国人进入美国（比如，用买房来换取绿卡）实际上将有助于启动美国经济。

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The agreement to be signed Thursday replaces the START-1 treaty, which U.S.President George H.W.Bush and Soviet President Mikhail Gorbachev signed in 1991.

VOA: standard.2010.04.04

So one of the things that the Allies very specifically wanted to do in World War II was to hijack one of these devices, take it from a U-boat because if they had this physical machine, certainly can they start decrypting then the German messages.

所以同盟国在二战中想做的一件事,就是劫持其中一个装置，携带在U型潜水艇中，因为如果他们拥有了这种物理装置，他们就可以解码,德国人的密文。

哈佛公开课 - 计算机科学课程节选

The secretary's visit marks the start of intensive U.S. -Mexico dialogue on the matter.

VOA: standard.2009.03.25

Higher taxes combined with more and more regulations are stifling many start-up companies in the U.S. China, on the other hand, is encouraging start-up companies and provides generous incentives to those who create industry.

FORBES: Taking Stock Of The U.S.-China Partnership

Three-quarters of U.S. start-ups expect to raise capital next year, according to a new survey, but many of them will find doors closing on the fund-raising trail as venture investors experience their own capital shortage.

WSJ: Cloudy Funding Forecast Ahead For Start-Ups

Although he doesn't officially take up the reins of office until his inauguration on January 20, 2009, Obama and his economic team -- including nominee Treasury Secretary Timothy Geithner and nominee Chief of the National Economic Council Larry Summers -- have already outlined an ambitious raft of policy measures designed to kick-start the flagging U.S. economy.

CNN: All change: Can Obama save the U.S. economy?