The tides depend on the pull of the moon.

潮汐是月亮引力作用的结果。

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This blue planet, and near her, the white moon that holds us in her gravitational pull so that we spin at the speed of life.

这蓝色的星球，还有在她附近，那以自身引力挽留住我们的白色月亮，于是，我们以生命的速度旋转。

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But gravity lessens with distance and this means that the pull from the Moon is stronger on the side of Earth that is facing the Moon.

但是，引力随距离增大而减小，这意味着月球施加在朝向自己那一面的地球部分的拉力要大些。

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As hours passed, the pull of the moon's gravity grew stronger.

VOA: special.2009.07.15

Because, apparently, the gravitational pull of the moon does not only tug the waters of the sea and make the tides, it tugs up the sap.

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But the size of the Earth is a few percent of the distance to the moon, which translates to about a 7% stronger gravitational pull on the near side of the Earth than the far side.

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