总计，皮肤在一个人的身体总重量中约占16%。

In total, skin accounts for about 16 percent of a person's total body weight.

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并且我们认为将要有26中不同的成分将要撞击到地球上的某处，重量总计略高于500千克。

And we believe it's going to be 26 different components that will hit the surface of the Earth somewhere, with a total mass a little over 500 kilograms.

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