VOA慢速英语2013.02.17
[audio]http://sound.yywz123.com/tingbbs/voa/voa20130217.mp3[/audio]Mike Cohen is the head of global health research at the University of North Carolina at Chapel Hill.迈克`科恩(Mike Cohen)是北卡罗莱纳大学教堂山分校全球健康研究中心的负责人.
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