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Astronauts at the International Space Station have overcome initial fears and are preparing to perform the first spacewalk beneath the shuttle to repair two dangling pieces of material. The material, used to fill gaps between tiles, is sticking out b
说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 cap [ kAp ] Clouds capped the woods. v
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NOEL KING, HOST: In the foothills of the Blue Ridge Mountains, the Bureau of Alcohol, Tobacco, and Firearms runs an academy for dogs. They're trained to detect explosives and chemical accelerants used in arson cases. A powerful senator wants the faci
By Margaret Besheer Washington 03 November 2007 NASA astronauts have successfully repaired a damaged solar wing at the International Space Station. The operation was completed Saturday, after being postponed twice so engineers could further study how
LIMA, Jan. 2 (Xinhua) -- Peruvian President Ollanta Humala Wednesday inaugurated the Villa Dakar, a facility where vehicles racing in the 2013 Dakar Rally will get a mechanical revision before the race next Jan. 5. A total of 459 vehicles, including