Aerial photo taken on April 21, 2019 shows the snow scenery of Qilian Mountains in northwest China. (Xinhua/Fan Peishen)
Aerial photo taken on April 21, 2019 shows the snow scenery of Qilian Mountains in northwest China. (Xinhua/Fan Peishen)
Aerial photo taken on April 21, 2019 shows the snow scenery of Qilian Mountains in northwest China. (Xinhua/Fan Peishen)
Aerial photo taken on April 21, 2019 shows the snow scenery of Qilian Mountains in northwest China. (Xinhua/Fan Peishen)
Aerial photo taken on April 21, 2019 shows the snow scenery of Qilian Mountains in northwest China. (Xinhua/Fan Peishen)
Aerial photo taken on April 21, 2019 shows the snow scenery of Qilian Mountains in northwest China. (Xinhua/Fan Peishen)
Aerial photo taken on April 21, 2019 shows the snow scenery of Qilian Mountains in northwest China. (Xinhua/Fan Peishen)
Aerial photo taken on April 21, 2019 shows the snow scenery of Qilian Mountains in northwest China. (Xinhua/Fan Peishen)
Aerial photo taken on April 21, 2019 shows the snow scenery of Qilian Mountains in northwest China. (Xinhua/Fan Peishen)
Aerial photo taken on April 21, 2019 shows the snow scenery of Qilian Mountains in northwest China. (Xinhua/Fan Peishen)