Aerial photo taken on Sept. 23, 2017 shows the scenery of the Qiandao Lake in Chun'an County, east China's Zhejiang Province. Comprehensive progress has been made since the report delivered at the 18th National Congress of the Communist Party of China (CPC) in 2012 included ecological development as a major task in the country's overall plan and proposed building a "beautiful China" as a grand goal. [Photo/Xinhua]