Aerial photo taken on Feb. 23, 2021 shows a rainbow appearing over the Hukou Waterfall in northwest China's Shaanxi Province.Photo:Xinhua
Aerial photo taken on Feb. 23, 2021 shows a rainbow appearing over the Hukou Waterfall in northwest China's Shaanxi Province.Photo:Xinhua
Aerial photo taken on Feb. 23, 2021 shows a rainbow appearing over the Hukou Waterfall in northwest China's Shaanxi Province.Photo:Xinhua
Aerial photo taken on Feb. 23, 2021 shows a rainbow appearing over the Hukou Waterfall in northwest China's Shaanxi Province.Photo:Xinhua