Photo taken on June 10, 2018 shows the scenery of Yijiawan Village of Fengle Township in Minle County of Zhangye, northwest China's Gansu Province. (Photo: Xinhua/Wang Jiang)

Photo taken on June 10, 2018 shows the scenery of Yijiawan Village of Fengle Township in Minle County of Zhangye, northwest China's Gansu Province. (Photo: Xinhua/Wang Jiang)

Photo taken on June 10, 2018 shows the scenery of Yijiawan Village of Fengle Township in Minle County of Zhangye, northwest China's Gansu Province. (Photo: Xinhua/Wang Jiang)

Photo taken on June 10, 2018 shows the scenery of Yijiawan Village of Fengle Township in Minle County of Zhangye, northwest China's Gansu Province. (Photo: Xinhua/Wang Jiang)