Aerial photo taken on July 19, 2021 shows sea of clouds in Chenshan Village of Liuliang Township, Zhuanglang County of Pingliang City, northwest China's Gansu Province.(Photo: Xinhua)
Aerial photo taken on July 19, 2021 shows sea of clouds in Chenshan Village of Liuliang Township, Zhuanglang County of Pingliang City, northwest China's Gansu Province.(Photo: Xinhua)
Aerial photo taken on July 19, 2021 shows sea of clouds in Chenshan Village of Liuliang Township, Zhuanglang County of Pingliang City, northwest China's Gansu Province.(Photo: Xinhua)
Aerial photo taken on July 19, 2021 shows sea of clouds in Chenshan Village of Liuliang Township, Zhuanglang County of Pingliang City, northwest China's Gansu Province.(Photo: Xinhua)