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Visitors tour the natural environmental zone along the Guishui River during the 2019 Beijing International Horticultural Exhibition in Yanqing District of Beijing, capital of China, April 30, 2019. (Xinhua/Zhang Chenlin)
Xinhua Headlines: Beijing Expo sets new stage for global cooperation on green development
Source: Xinhua| 2019-05-01 20:39:15|Editor: Liangyu