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Aerial photo taken on July 27, 2019 shows the scenery of terraced field in Pengyang County of Guyuan, northwest China's Ningxia Hui Autonomous Region. (Xinhua/Yang Zhisen)
Aerial photo taken on July 27, 2019 shows the scenery of terraced field in Pengyang County of Guyuan, northwest China's Ningxia Hui Autonomous Region. (Xinhua/Yang Zhisen)