Michael Phelps wins gold in men's 4x200m freestyle relay
時間:2012-08-01 10:05 來源：Xinhua
Swimmers of U.S. pose at the awarding ceremony of men's 4x200m freestyle relay of swimming at the London 2012 Olympic Games in London, Britain, July 31, 2012. The U.S. swimmers claimed the title in this event. (Xinhua/Fei Maohua)
