A drone photo taken on Jan. 15, 2025 shows the snow scenery of Qilian Mountains in Tianzhu County of Wuwei City, northwest China's Gansu Province. (Xinhua/Lang Bingbing)

A herd of sheep graze on grassland at Shuiquan Village in Tianzhu County of Wuwei City, northwest China's Gansu Province, Jan. 15, 2025. (Xinhua/Lang Bingbing)

A drone photo taken on Jan. 15, 2025 shows the snow scenery of Qilian Mountains in Tianzhu County of Wuwei City, northwest China's Gansu Province. (Xinhua/Lang Bingbing)

A drone photo taken on Jan. 15, 2025 shows the snow scenery of Qilian Mountains in Tianzhu County of Wuwei City, northwest China's Gansu Province. (Xinhua/Lang Bingbing)

A drone photo taken on Jan. 15, 2025 shows the snow scenery of Qilian Mountains in Tianzhu County of Wuwei City, northwest China's Gansu Province. (Xinhua/Lang Bingbing)