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China's Xie Zhenye (R) competes during the men's 200m final at the 2019 IAAF World Athletics Championships in Doha, Qatar, on Oct. 1, 2019. (Xinhua/Xu Suhui)

China's Xie Zhenye (R) competes during the men's 200m final at the 2019 IAAF World Athletics Championships in Doha, Qatar, on Oct. 1, 2019. (Xinhua/Xu Suhui)