A visitor views the exhibits during a preview of the Silk Road (Dunhuang) International Culture Expo in Dunhuang, northwest China's Gansu Province, Sept. 12, 2016. The expo will be held in Dunhuang from Sept. 20 to Oct. 10. (Photo/Xinhua)
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A visitor views the exhibits during a preview of the Silk Road (Dunhuang) International Culture Expo in Dunhuang, northwest China's Gansu Province, Sept. 12, 2016. The expo will be held in Dunhuang from Sept. 20 to Oct. 10. (Photo/Xinhua)
