相关单词近义词 gravity 重力, movement 活动, attraction 吸引, gravitational attraction 地球引力, gravitational force 引力反义词levitation, 飘浮临近词gravity, gravitate, gravitational, gravitation law, gravitation tank, gravitation mass, Gravitation pure, gravitation shock, gravitation model, gravitational cue, gravitation field, gravitational low 返回 gravitationally