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China's Zhao Shuai (L) competes against Germany's Iordanis Konstantinidis during the men's -63kg semifinal at the World Taekwondo Championships 2019 in Manchester, Britain on May 18, 2019. (Xinhua/Jon Super)
China's Zhao Shuai (L) competes against Germany's Iordanis Konstantinidis during the men's -63kg semifinal at the World Taekwondo Championships 2019 in Manchester, Britain on May 18, 2019. (Xinhua/Jon Super)