EPISODE · Dec 19, 2013 · 9 MIN
改变人一生的80美元假膝 | Krista Donaldson
from TEDTalks 科学与医疗 · host TED
近几年来，科学技术在不可思议地进步着，但是，大多数情况下，它似乎只能使少部分富足的人群受益。工程师克里丝塔· 唐纳森为我们介绍了“移动假膝”，一种为膝上截肢者设计的假肢，而这些截肢者中的很多人每天的生活费不足四美元。这种产品不但拥有一流的品质，也比市面上的其他假肢要便宜得多。Translated by Jingwei GuReviewed by Peipei Xiang
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改变人一生的80美元假膝 | Krista Donaldson
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