China's Zhang Peimeng celebrates after winning the second place of the men's 4x100m relay final at the 2015 IAAF World Championships at the "Bird's Nest" National Stadium in Beijing, capital of China, Aug. 29, 2015.(Xinhua/Wang Haofei)
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China's Zhang Peimeng celebrates after winning the second place of the men's 4x100m relay final at the 2015 IAAF World Championships at the "Bird's Nest" National Stadium in Beijing, capital of China, Aug. 29, 2015.(Xinhua/Wang Haofei)
