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。
The pull of gravity depends upon size, or, more accurately, 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。
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。
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。
We shall pretend that there is a big switch that can change the pull of gravity.
我们要假设有一个能改变地心引力的大的转换器…
But the strength of that pull — of gravity — depends on two things.
但那个拉力(引力)的强度取决于两个因素。
Gravity is the attraction, or pull, of one object on another object.
引力是一个物体对另一个物体所产生的吸引力，或拉力。
Gravity exerts a natural pull straight downwards, towards the centre of the earth.
地心引力施加一个垂直向下，指向地球中心的自然拉力。
Gravity exerts a natural pull straight downwards, towards the center of the earth.
地心引力施加一个垂直向下，指向地球中心的自然拉力。
And if the earth's gravity seems strong, imagine the pull of the sun.
姑且地球的引力已经够大的了，设想一下太阳的引力该有多大。
The pull of the earth is called gravity.
地球拉你的力成为重力。
The pull of the earth is called gravity.
地球拉你的力成为重力。
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