If a spacecraft travels faster than 11 km a second, it escapes the Earth's gravitational pull.
如果一架宇宙飞船飞行超过每秒11公里,它就能摆脱地球引力。
In art I want to be free from the earth's gravitational pull.
在摄影作品中,我想脱离地心引力。
The idea is that the matter we see does not have enough gravitational pull to keep galaxies together.
VOA: special.2009.07.21
It's not talking about the gravitational pull of the Earth on an object.
没提到地球对物体的引力
For much of the past century there were average global increases of 1.7 millimeters a year, but that rate doubled between 1993 and 2007.(мظ) Some regions, notably Western Australia have suffered more than others, partly,scientists say, because of how gravitational pull affects tides.
VOA: standard.2009.11.09
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