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(单词翻译:双击或拖选)
台湾籍旅美老师今天交给我们的句子是:
In fact, a black hole with the diameter of a nickel would be slightly more massive than the Earth. It would have a surface gravity a billion billion times greater than our planet currently does.
事实上,和硬币一样直径的黑洞其质量比地球还稍稍重一些,它的表重力,比我们现在的星球还大上数百亿倍。