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China's Su Bingtian (2nd L) and Xie Zhenye (2nd R) compete in the men's 100m heat 2 at IAAF Diamond League Grand Prix Birmingham in Birmingham, Britain on Aug. 18, 2019. (Xinhua/Han Yan)
China's Su Bingtian (2nd L) and Xie Zhenye (2nd R) compete in the men's 100m heat 2 at IAAF Diamond League Grand Prix Birmingham in Birmingham, Britain on Aug. 18, 2019. (Xinhua/Han Yan)