体质是人的生命活动和劳动、工作能力的物质基础。
As for human, constitution is the material basis of life activities and the abilities of labouring work.
体质是人的生命活动、劳动能力、运动能力的物质基础。
It is the basis of peoples life-movement, labor ability and sports ability.
硒是人体必需的微量元素，对人体的生长发育与维持人的生命活动发挥着重要的作用。
Selenium is a necessary microelement in the body which plays an important role in body growth and life maintenance.
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