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Xu Zhouzheng (L) of team China passes the baton to Wu Zhiqiang during the men's 4X100m relay final at the 2019 IAAF World Athletics Championships in Doha, Qatar, Oct. 5, 2019. (Xinhua/Li Ming)
Xu Zhouzheng (L) of team China passes the baton to Wu Zhiqiang during the men's 4X100m relay final at the 2019 IAAF World Athletics Championships in Doha, Qatar, Oct. 5, 2019. (Xinhua/Li Ming)