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.

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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