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标题: VOA慢速英语2014.09.17 [打印本页]

作者: Rebecca949    时间: 2014-9-17 09:15     标题: VOA慢速英语2014.09.17

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___________________________________ But the researcher says the protein is not a "fountain of youth." He says the aim of the research is not to lengthen life as much as to improve it. 但是,研究人员表示该蛋白质并非"青春泉".他表示研究的目的并非延年益寿而是改善机体.




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