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Scientists Deliberate Cleaning Space Junk WASHINGTON Everything that we launch into an orbit around the earth eventually becomes space debris. Scientists say the increasing number of unusable objects circling our planet is threatening functioning sat
VOA标准英语2014年(六月)
Broadcast: Feb 01, 2003 The U.S. Space Shuttle Columbia broke apart in mid-air Saturday minutes before it was to return to Earth. The U.S. space agency, 1) NASA, says none of the seven astronauts aboa
VOA2003（上）-科技先知
We have to beat that. 我们必须克服它。 We can do it because in space there are no aerodynamics. 我们能够这样做是因为太空里没有空气阻力。 We can go and use inflatable systems for almost everything. 我们几乎总是能够使
TED演讲商业篇
China has launched two satellites into space on a Long March carrier rocket from the Xichang Satellite Launch Center in Sichuan Province. The satellites are part of the country's growing BeiDou Navigation Satellite System. The launch of the Long Marc
2018CRI中国国际广播电台
By Mil Arcega Washington 03 December 2007 A panel of oil experts, including an ambassador from a producing nation, warned this week growing militancy in the Middle East poses a threat to world oil markets. The forum, hosted by a conservative think ta
VOA常速英语2007年（十二月）
To Minsky, this was an unfair and naive representation of Keynes's subtle and sophisticated views. 对于明斯基而言，这是对凯恩斯的精妙且成熟的观点的一种不公平且天真的表述。 Minsky's financial-instability hypothesis
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