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根据牛顿的模型,重力的原因是一个有吸引力的巨大物体之间生效。
Under Newton's model, gravity was the result of an attractive force between massive objects.
youdao
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根据牛顿的模型,重力的原因是一个有吸引力的巨大物体之间生效。
Under Newton's model, gravity was the result of an attractive force between massive objects.
youdao