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同学们,相信大家都知道牛顿这位大科学家吧,就是他发现了地球的万有引力。大家想不想知道其中的故事呢?现在就让我来告诉你们吧!
Students, I believe we all know Newton the great scientist, that is, he discovered the gravitation of the Earth. Do you want to know the story? Let me tell you now!