单词：tetraprotic acid
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AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER: We're back with Virginia Berninger, an educational psychology professor at the University of Washington in Seattle. RS: A study she and her colleagues did found that children in f
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RACHEL MARTIN, HOST: Today in Your Health, we take a look at female athletes and concussions. Most of what scientists know about these injuries comes from studies of men, even as more women are competing in contact sports. NPR's Jon Hamilton has the
2017年NPR美国国家公共电台7月
avulse, vt （由于意外事故或通过外科手术）把（身体的一部分）撕脱；抽出 【反】link（vt 连结）；suture（vt 缝合）
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AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER: we talk with an expert on children and handwriting. RS: Virginia Berninger is an educational psychology professor at the University of Washington in Seattle. She tells us about a
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Fighting Their Way to Brain Disease? Its long been known that boxers and other athletes can develop brain damage from repeated blows to the head. Now a new study is trying to find out when that damage begins and how long it takes for symptoms to appe
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Haiti's First Lady Champions Social Causes Sophia Martelly, the wife of Haiti's new president, Michel Martelly, is juggling the care of four children and a change of lifestyle from when she was simply the wife of a popular musician, her husband's pre
VOA标准英语2011年(十一月)