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科学美国人60秒 SSS 2014-05-22
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科学美国人60秒 SSS 2014-05-23
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科学美国人60秒 SSS 2014-05-26
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科学美国人60秒 SSS 2014-05-27
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科学美国人60秒 SSS 2014-05-28
HUMAN FAMILY By Maya Angelou I note the obvious differences in the human family. Some of us are serious, some thrive on comedy. Some declare their lives are lived as true profundity, and others claim they really live the real reality. The variety of
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科学美国人60秒 SSS 2014-05-29
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科学美国人60秒 SSS 2014-05-30
Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!