Photo taken on June 15, 2017 shows the summer scenery of Qilian Mountains at Tibetan Autonomous County of Tianzhu in Wuwei City, northwest China's Gansu Province. (Xinhua/Fan Peishen)
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Photo taken on June 15, 2017 shows the summer scenery of Qilian Mountains at Tibetan Autonomous County of Tianzhu in Wuwei City, northwest China's Gansu Province. (Xinhua/Fan Peishen)
