
Emma McKeon of Australia competes during the women's 4x200m freestyle swimming relay final at the 17th FINA Aquatics World Championships held in Budapest, Hungary on July 27, 2017. (Xinhua/Ding Xu)

Emma McKeon of Australia competes during the women's 4x200m freestyle swimming relay final at the 17th FINA Aquatics World Championships held in Budapest, Hungary on July 27, 2017. (Xinhua/Ding Xu)