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A volunteer takes photos at the International Horticultural Exhibition 2019 Beijing in Yanqing District of Beijing, capital of China, April 29, 2019. The expo opened to the public on Monday. (Xinhua/Li He)
A volunteer takes photos at the International Horticultural Exhibition 2019 Beijing in Yanqing District of Beijing, capital of China, April 29, 2019. The expo opened to the public on Monday. (Xinhua/Li He)