It almost focus on social mobility of elite athletes, but lack of social mobility research on ordinary people;

体育领域内的研究多聚焦于优秀运动员的社会流动上，而缺少对普通群体的研究；

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It almost focus on social mobility of elite athletes, but lack of social mobility research on ordinary people;

体育领域内的研究多聚焦于优秀运动员的社会流动上，而缺少对普通群体的研究；

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