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标题: VOA慢速英语2012.08.07 [打印本页]

作者: Rebecca949    时间: 2012-8-7 09:58     标题: VOA慢速英语2012.08.07

[audio]http://sound.yywz123.com/tingbbs/voa/voa20120807.mp3[/audio]



One common problem in preterm babies is respiratory disease. The lungs are the last organs to develop. But a medicine called surfactant can save babies struggling to breathe. The story of this lifesaving medicine begins with a discovery in nineteen fifty-nine by a researcher named Mary Ellen Avery. 早产儿常见的问题之一就是呼吸系统疾病,肺部是最晚发育的器官,但一种名叫表面活性剂的药物可以解救婴儿的呼吸困难。这种救命药的故事始于1959年一位名为玛丽.艾伦.艾弗里的研究员的发现。
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作者: 杨飞飞儿    时间: 2012-8-8 12:13

she told the story in 2005 to children's news and at children's hospital in boston where she was the first woman to serve as physician in cheef
作者: zhant220    时间: 2012-8-8 14:00

she told the story in 2005 to children's news and at children's hospital in Boston, she was the first woman to serve as position in chief
作者: sullensky    时间: 2012-8-10 20:57

谢楼主
作者: jizhao19960124    时间: 2012-8-12 21:28






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