自由落体运动 zìyóuluòtǐyùndòng free fall Definitions Defs Origin Strokes Stroke Words Sentences Sents 自由 zìyóu adjective free free; unrestrained; unrestricted; to act of one's own accord落体 落體 luòtǐ falling body an object falling through the air under the influence of gravity; often used in physics context运动 運動 yùndòng verbnoun movement movement; motion; the change of position of an object in space