Japan's Nao Kodaira competes during the women's 500m speed skating competition at the 2017 Sapporo Asian Winter Games in Obihiro, Japan, Feb. 21, 2017. (Xinhua/Jiang Wenyao)
Japan's Nao Kodaira competes during the women's 500m speed skating competition at the 2017 Sapporo Asian Winter Games in Obihiro, Japan, Feb. 21, 2017. (Xinhua/Jiang Wenyao)