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Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye, northwest China's Gansu Province. (Xinhua/Wang Chao)
Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye, northwest China's Gansu Province. (Xinhua/Wang Chao)