Chinese vice premier Liu Yandong(2nd R), Chinese president 's special envoy, hugs members of Chinese gymnastics team during her visit to Chinese Olympic delegation in Rio de Janeiro, Brazil on Aug. 4, 2016. Liu Yandong visited Chinese Olympic delegation here on Thursday. (Xinhua/Han Yan)

Chinese vice premier Liu Yandong, Chinese president Xi Jinping's special envoy, poses for photos with members of Chinese Olympic delegation in Rio de Janeiro, Brazil on Aug. 4, 2016. Liu Yandong visited Chinese Olympic delegation here on Thursday. (Xinhua/Han Yan)

Chinese vice premier Liu Yandong(C), Chinese president Xi Jinping's special envoy, poses for photos with members of Chinese Olympic gymnastics team in Rio de Janeiro, Brazil on Aug. 4, 2016. Liu Yandong visited Chinese Olympic delegation here on Thursday. (Xinhua/Han Yan)

Chinese vice premier Liu Yandong(R), Chinese president Xi Jinping's special envoy, delivers a speech during her visit to Chinese Olympic delegation in Rio de Janeiro, Brazil on Aug. 4, 2016. Liu Yandong visited Chinese Olympic delegation here on Thursday. (Xinhua/Han Yan)