It's because we leave the pull of gravity that comes from the earth.

这是因为我们离开了来自地球的地心引力的拉力。

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The pull of gravity depends upon size, or, more accurate ly, upon mass.

引力的拉力取决于物体的大小，或者更确切地说，取决于质量。

youdao

His imagination seems to constantly soar and leave the pull of gravity behind.

他的想象力似乎总是天马行空，把地心引力抛诸脑后。

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After about an hour of being beyond the pull of Earth's gravity, Glenn reported he felt fine.

VOA: special.2009.06.17

If you escape the pull of gravity, your spaceship will be off, won't be orbiting the Earth.

如果你完全脱离重力,太空船早就飞得没影了,而不是在轨道上运行

耶鲁公开课 - 基础物理课程节选

We all know that in a falling elevator, you definitely do not escape the pull of gravity.

我们都知道在一个下坠的电梯里,你当然还是会受到重力的

耶鲁公开课 - 基础物理课程节选

But he didn't reckon on the inexorable pull of gravity from Earth's nearest celestial neighbor.

CNN: The sun, the moon and the Titanic

At low speeds, an accelerometer determines the position of the lights by reading the pull of gravity.

CNN: Light-up wheels turn your bike into a 'Tron Cycle'

These possible universes will first expand, and then contract and collapse again under the pull of gravity.

ECONOMIST: The universe, it appears, may not be alone