单词：roll deformation angle
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This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Bats see with their ears, which are highly attuned to pick up minute variations in the reflection of the sound pulses they use to echolocate. Here are so
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what if she's an angle There's a man standing on the corner 一个男子站在街角 With a sign sayin will work for food You know the man 身边的标示告之 他已失去了工作 You see him every morning 你每天清晨都能见到他 The one yo
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The Zika virus outbreak in Latin America could be a bigger threat to global health than the Ebola epidemic that killed more than 11,000 people in Africa. That's according to several public health experts who spoke with the Guardian and Examiner newsp
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本期内容： The World Health Organisation warned that Zika, a mosquito-borne virus linked to brain deformation in human fetuses, is likely to spread to every country in the Americas except Canada and Chile. Brazil has reported 3,893 cases of micr
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