名词
中文翻译：引力加速度
同义词：
['gravitational force', 'gravitational pull例句：1. The spacecraft accelerated to a speed of 20', '000 miles per hour.（航天飞机以每小时20', "000英里的速度加速。）2. Gravitational forces are responsible for the movement of planets and stars.（引力力是行星和恒星运动的原因。）3. The gravitational pull of the Earth's gravity is what keeps us on the surface of the earth.（地球的引力是我们留在地表的原因。）"]
例句：
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1. The spacecraft accelerated to a speed of 20,000 miles per hour.
航天飞机以每小时20,000英里的速度加速。
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2. Gravitational forces are responsible for the movement of planets and stars.
引力力是行星和恒星运动的原因。
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3. The gravitational pull of the Earth's gravity is what keeps us on the surface of the earth.
地球的引力是我们留在地表的原因。