地心引力英语
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gravity是什么意思 - gravity中文意思和解释
gravity基本解释 n,[力]重力，地心引力；严重性；庄严,同近 gravity相关例句和用法 the force of gravity.重力 gravity英英释义 重力，地心引力；严重性；庄严英释中释nthe force that causes something to fall to the ground or to be attracted to another planet...
gravity基本解释 n,[力]重力，地心引力；严重性；庄严,同近 gravity相关例句和用法 the force of gravity.重力 gravity英英释义 重力，地心引力；严重性；庄严英释中释nthe force that causes something to fall to the ground or to be attracted to another planet...