Clouds sweep across the sky over Hulunbuir Prairie in North China's Inner Mongolia autonomous region, Aug 26, 2019. The landscape was captured after heavy autumn rains, with horses strolling across the pasture and the meandering river flowing by. (Photo/Xinhua)

An aerial photo of Hulunbuir Prairie in North China's Inner Mongolia autonomous region, Aug 26, 2019. (Photo/Xinhua)

Clouds drift across the sky above Hulunbuir Prairie in North China's Inner Mongolia autonomous region, Aug 26, 2019. (Photo/Xinhua)

An aerial photo of Hulunbuir Prairie in North China's Inner Mongolia autonomous region, Aug 26, 2019. (Photo/Xinhua)