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People visit the Yinghua Lake in Rongcheng City, east China's Shandong Province, May 27, 2019. Thanks to the ecological protection, the Yinghua lake has been converted from a polluted lake to a theme park. (Xinhua/Li Ziheng)
People visit the Yinghua Lake in Rongcheng City, east China's Shandong Province, May 27, 2019. Thanks to the ecological protection, the Yinghua lake has been converted from a polluted lake to a theme park. (Xinhua/Li Ziheng)