Gold medalist Yang Jiayu (C) of China, silver medalist Maria Guadalupe Gonzalez (L) of Mexico and bronze medalist Antonella Palmisano of Italy attend the medal presenting ceremony of Women's 20km Race Walk on Day 10 of the 2017 IAAF World Championships in London, Britain, on Aug. 13, 2017.(Xinhua/Luo Huanhuan)
