The disastrous scene in Nihombashi-ku, the center of the Imperial Capital. Men stand among debris and bodies, building frames in background. (Brown University Library/William Dana Reynolds)

在京城中心日本桥区的惨状。站在废墟和尸体间的男人们。背景是楼房残迹。（布朗大学图书馆/威廉·达纳·雷诺兹）

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Dana-Farber's Bruce Spiegelman, who worked on the research, said in a telephone interview that researchers have been trying to find the genes that turn brown fat cells on.

达娜-法贝尔的Bruce Spiegelman从事于这项研究，在一个电话采访中他说，研究人员一直在寻找能转化褐色脂肪细胞的基因。

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Here in Los Angeles we're joined by Dana Brown.

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