Photo shows winter scenery of the Hulun Buir Grasslands in north China's Inner Mongolia Autonomous Region, Dec. 15, 2019. (Photo by Bei He/Xinhua)

Horses are seen on the Hulun Buir Grasslands in north China's Inner Mongolia Autonomous Region, Dec. 15, 2019. (Photo by Bei He/Xinhua)

A herd of cattle are seen on the Hulun Buir Grasslands in north China's Inner Mongolia Autonomous Region, Dec. 15, 2019. (Xinhua/Liu Lei)

A herd of cattle are seen on the Hulun Buir Grasslands in north China's Inner Mongolia Autonomous Region, Dec. 15, 2019. (Photo by Bei He/Xinhua)

Photo shows winter scenery of the Hulun Buir Grasslands in north China's Inner Mongolia Autonomous Region, Dec. 15, 2019. (Xinhua/Liu Lei)

Livestock are seen on the Hulun Buir Grasslands in north China's Inner Mongolia Autonomous Region, Dec. 15, 2019. (Photo by Bei He/Xinhua)

Horses are seen on the Hulun Buir Grasslands in north China's Inner Mongolia Autonomous Region, Dec. 15, 2019. (Xinhua/Liu Lei)