单词：ostreogrycin
[医] 牡蛎菌素
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Millions More Children to Receive Vaccines More than one million children die each year from severe diarrhea and pneumococcal disease. Today (Tuesday), the GAVI Alliance announced an expanded campaign against the two leading killers of children world
VOA标准英语2011年(九月)
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手提微型电脑 Treo 的发明者 Jeff Hawkins 建议学者们从另一个角度去研究大脑，传统看法把大脑看成中央处理器，他建议把大脑看成一个记忆体，用于贮存和重演经历来有智慧地预计将会发生的事
TED公开课:美妙的神经系统
A major threat to NATO forces in Afghanistan comes from IEDs or improvised explosive devices. One way British forces are combating the threat is with dogs trained to detect explosives. It's a program cloaked in secrecy with officials refusing to give
VOA标准英语2010年(三月)
Broadcast on Coast to Coast: November 7, 2002 Rebroadcast on VOA News Now: November 10, 2002 AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER -- slang and idioms in American politics. RS: Tuesday was Election Day, and Slangman Da
词汇大师(Wordmaster)
By Jessica Berman Washington 11 May 2006 French researchers at the Sanofi Pasteur Institute say they have developed a bird flu vaccine that, so far, appears to be safe and effective in humans. But obs
2006年VOA标准英语（五月）