The definition of sport ought to be activity of human limbs and trunk for strengthen physical power but production.
体育的定义应是，旨在强化体能的非生产性肢体活动。
It is proved that sport's nature is strengthen physical power forever, and the firm characteristic of sport also is strengthen physical power.
论证体育的本质是永无止境地强化体能，因为强化体能是体育其事最稳固最鲜明的特征。
Absrtact: the concept attribute of sport is activity of human limbs and trunk, and the specific difference of sport is to strengthen physical power and it is not for production.
摘要：体育概念的属性是人的肢体活动，其种差是强化体能和非生产性。
Absrtact: the concept attribute of sport is activity of human limbs and trunk, and the specific difference of sport is to strengthen physical power and it is not for production.
摘要：体育概念的属性是人的肢体活动，其种差是强化体能和非生产性。
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