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A woman visit the Dunhuang Museum in Dunhuang, northwest China's Gansu Province, May 3, 2019. People learn knowledge in various museums during the Labor Day holiday. (Xinhua/Zhang Xiaoliang)
A woman visit the Dunhuang Museum in Dunhuang, northwest China's Gansu Province, May 3, 2019. People learn knowledge in various museums during the Labor Day holiday. (Xinhua/Zhang Xiaoliang)