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Wei Yongli (rear) of China competes during the women's 100m semifinal at the 2019 IAAF World Athletics Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Xu Suhui)
Wei Yongli (rear) of China competes during the women's 100m semifinal at the 2019 IAAF World Athletics Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Xu Suhui)