Chinese swimmer Ning Zetao chats with his teammates during a training session in Rio de Janeiro's Olympic Aquatics Stadium in Brazil on July 31, 2016, as the team makes the last-minute preparation for the upcoming Rio Games. [Photo/Xinhua]
2016年7月31日，游泳隊隊員寧澤濤和隊友們交流。當天，中國游泳隊在里約奧林匹克水上項目體育館備戰奧運。