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China's walk race athletes Yang Jiayu and Liang Rui take part in a training session in Doha, Qatar, in the midnight on Sept. 23, 2019. (Xinhua/Wang Jingqiang)
China's walk race athletes Yang Jiayu and Liang Rui take part in a training session in Doha, Qatar, in the midnight on Sept. 23, 2019. (Xinhua/Wang Jingqiang)