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Tourists enjoy the autumn scenery of the Qilian Mountains in the Tibetan Township of Mati in Sunan Yugur Autonomous County, northwest China's Gansu Province, Oct. 4, 2018. (Xinhua/Wang Jiang)
Tourists enjoy the autumn scenery of the Qilian Mountains in the Tibetan Township of Mati in Sunan Yugur Autonomous County, northwest China's Gansu Province, Oct. 4, 2018. (Xinhua/Wang Jiang)