Photo taken on April 23, 2019 shows a participant giving a speech during the China Green Companies Summit 2019 in Dunhuang, northwest China's Gansu Province. The summit was held from April 22 to 23 in Dunhuang. (Xinhua/Fan Peishen)
China Green Companies Summit held in Dunhuang, NW China
Source: Xinhua| 2019-04-24 09:00:15|Editor: ZX
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