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Yan Siyu (front) of China competes during the women's 5km open water swimming at the 2019 FINA World Championships in Yeosu, South Korea, July 17, 2019. (Xinhua/Tao Xiyi)
Yan Siyu (front) of China competes during the women's 5km open water swimming at the 2019 FINA World Championships in Yeosu, South Korea, July 17, 2019. (Xinhua/Tao Xiyi)