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Ma Qianhan of Shanxi delegation prepares before the women's 400m freestyle final at the 2nd Youth Games of the People's Republic of China in Taiyuan, north China's Shanxi Province on Aug. 17, 2019. (Xinhua/Ju Huanzong)
Ma Qianhan of Shanxi delegation prepares before the women's 400m freestyle final at the 2nd Youth Games of the People's Republic of China in Taiyuan, north China's Shanxi Province on Aug. 17, 2019. (Xinhua/Ju Huanzong)