Locomotion is the ability to move and the act of moving from one place to another.
例句
Flight is the form of locomotion that puts the greatest demands on muscles...飛行是對(duì)肌肉要求最高的運(yùn)動(dòng)形式。He specialises in the mechanics of locomotion.他專攻運(yùn)動(dòng)力學(xué)。