
Team China react after the men's 4x100m relay final on Day 9 at the IAAF World Championships 2017 in London, Britain on Aug. 12, 2017. (Xinhua/Wang Lili)

Team China react after the men's 4x100m relay final on Day 9 at the IAAF World Championships 2017 in London, Britain on Aug. 12, 2017. (Xinhua/Wang Lili)