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A guest views a photo exhibition held as part of the 2019 Los Angeles-Chengdu Culture and Innovation Exchange Series Events in Los Angeles, the United States, Nov. 6, 2019. (Xinhua/Li Ying)
A guest views a photo exhibition held as part of the 2019 Los Angeles-Chengdu Culture and Innovation Exchange Series Events in Los Angeles, the United States, Nov. 6, 2019. (Xinhua/Li Ying)