
Photo taken on Dec. 23, 2019 shows a performance on the the opening ceremony of the 2019 Hulun Buir Winter Nadam Fair in Hulun Buir, north China's Inner Mongolia Autonomous Region. The 2019 Hulun Buir Winter Nadam Fair opened on Monday in Chen Barag Banner of Hulun Buir. (Xinhua/Xu Qin)

Actors and actresses pose for a group photo after the the opening ceremony of the 2019 Hulun Buir Winter Nadam Fair in Hulun Buir, north China's Inner Mongolia Autonomous Region, Dec. 23, 2019. The 2019 Hulun Buir Winter Nadam Fair opened on Monday in Chen Barag Banner of Hulun Buir. (Xinhua/Xu Qin)

Contestants take part in a Mongolian wrestling competition on 2019 Hulun Buir Winter Nadam Fair in Hulun Buir, north China's Inner Mongolia Autonomous Region, Dec. 23, 2019. The 2019 Hulun Buir Winter Nadam Fair opened on Monday in Chen Barag Banner of Hulun Buir. (Xinhua/Xu Qin)

Contestants take part in a Mongolian wrestling competition on 2019 Hulun Buir Winter Nadam Fair in Hulun Buir, north China's Inner Mongolia Autonomous Region, Dec. 23, 2019. The 2019 Hulun Buir Winter Nadam Fair opened on Monday in Chen Barag Banner of Hulun Buir. (Xinhua/Xu Qin)

Contestants take part in a Mongolian wrestling competition on 2019 Hulun Buir Winter Nadam Fair in Hulun Buir, north China's Inner Mongolia Autonomous Region, Dec. 23, 2019. The 2019 Hulun Buir Winter Nadam Fair opened on Monday in Chen Barag Banner of Hulun Buir. (Xinhua/Xu Qin)