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Li Bingjie of China competes during the Women's 400m Freestyle Heats at 14th FINA World Swimming Championships (25m) in Hangzhou, east China's Zhejiang Province, on Dec. 14, 2018. (Xinhua/Wang Lili)

Li Bingjie of China competes during the Women's 400m Freestyle Heats at 14th FINA World Swimming Championships (25m) in Hangzhou, east China's Zhejiang Province, on Dec. 14, 2018. (Xinhua/Wang Lili)