Aerial photo taken on Dec. 29, 2020 shows the winter scenery of Koktokay scenic area in Fuyun County, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Sadat)

Photo taken on Dec. 29, 2020 shows the winter scenery of Koktokay scenic area in Fuyun County, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Sadat)

Aerial photo taken on Dec. 29, 2020 shows the winter scenery of Koktokay scenic area in Fuyun County, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Sadat)

Aerial photo taken on Dec. 29, 2020 shows the winter scenery of Koktokay scenic area in Fuyun County, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Sadat)

Aerial photo taken on Dec. 29, 2020 shows the winter scenery of Koktokay scenic area in Fuyun County, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Sadat)

Aerial photo taken on Dec. 29, 2020 shows the winter scenery of Koktokay scenic area in Fuyun County, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Sadat)