去年，美国明尼苏达大学的研究小组找到了一种办法，把人类胚胎干细胞引导成一种强有力的白细胞，这种白细胞会破坏肿瘤细胞。

Last year a group at the University of Minnesota found a way to guide into human embryonic stem cells into becoming a potent type of white blood cell which destroys tumour cells.

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美国明尼苏达大学的研究人员发现：一种具有独特性能的新型合金可以将热能直接转化成电能。

A new alloy with unique properties can convert heat directly into electricity, according to researchers at the University of Minnesota.

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“传单上过多的广告“肯定会适得其反”，但目前还不清楚这是否会使航空公司的形象受到影响。”美国明尼苏达大学，休斯敦说。

Houston, of the University of Minnesota, says too much advertising aimed at fliers "could certainly backfire," but it is unclear whether an airline's image would suffer.

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