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China's Xie Wenjun (C) competes in the men's 110m hurdles final during the Muller Birmingham Grand Prix & IAAF Diamond League event at Alexander Stadium in Birmingham, Britain on Aug. 18, 2019. (Xinhua/Han Yan)
China's Xie Wenjun (C) competes in the men's 110m hurdles final during the Muller Birmingham Grand Prix & IAAF Diamond League event at Alexander Stadium in Birmingham, Britain on Aug. 18, 2019. (Xinhua/Han Yan)