单词：Lichtenhagen
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One day these manned space missions may reach out even further to distant planets with alien atmospheres, atmospheres that may support their own life forms. Else where in our universe on distant planets, alien air may support extraterrestrial life. J
探索与发现2014年
[00:00.00]Exercise 2.2 [00:10.82]Today, we will talk about choking. [00:13.67]In fact, choking is quite a common problem [00:17.08]in our daily life. [00:19.29]What's choking? [00:21.42]This is when someone has an object stuck in [00:24.98]his or her
北师大版初中英语九年级（全一册）
Accord of Sorts in Copenhagen Working late into the night, negotiators from the world's nations agreed in principle to attempt to limit the global postindustrial temperature rise to 2 degrees Celsius. Steve Mirsky reports, with Christina Reed in Cope
60秒科学
COPENHAGEN, April 7 (Xinhua) -- The Copenhagen WTA tennis tournament, a 220,000 U.S. dollar outdoor hardcourt event, opened at the Farum Arena here Saturday. The international event features 24 players, including world number six women's tennis playe
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Pope Benedict XVI greets ambassadors to The Holy See during the traditional new year's address to diplomatic corps, at the Vatican, 11 Jan 2010 Pope Benedict XVI focused his annual address to ambassadors accredited to the Vatican on the environment a
VOA标准英语2010年(一月)
Back here are specimens collected by Joseph Banks in Australia, 这里放着约瑟夫班克斯在澳大利亚采集的标本， Alexander von Humboldt in Amazonia, Darwin on the Beagle voyage, and much else that is either very rare or historically im
万物简史