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XINHUA SPORTS PHOTO OF THE DAY ISSUED ON Oct. 7, 2019. Team Poland celebrates after the women's 4X400m relay at the 2019 IAAF World Athletics Championships in Doha, Qatar, Oct. 6, 2019. (Xinhua/Jia Yuchen)
XINHUA SPORTS PHOTO OF THE DAY ISSUED ON Oct. 7, 2019. Team Poland celebrates after the women's 4X400m relay at the 2019 IAAF World Athletics Championships in Doha, Qatar, Oct. 6, 2019. (Xinhua/Jia Yuchen)