&On April 21, 2017, the theme activity "promoting urban construction and sharing quality Weifang" organized by Weifang Youth Federation entered Changda. Gao Bin, deputy secretary of the Communist Youth League and vice chairman of the Federation, and members and representatives from all relevant parties of the Federation attended relevant activities. Wu Jie, vice general manager of the group, attended all activities as a member of the Standing Committee of the Youth Federation. &From 2:00 p.m., members of the Youth League visited the new high-speed rail zone, Taihe Shangzhu of Changda real estate project and Changda group, and held a symposium in the conference room of Changda office building to help the construction of "four cities" (strong industry, famous culture, vigorous city and quality city). &Members of the Youth League of China entered Changda, especially the investigation, research and suggestions activities focusing on the construction of "four cities", which explained the main contributions of Changda to Weifang City construction, economic and social development and leading construction enterprises in many aspects, and also a re exhibition of the quality of Changda. &During the activity, the members of the Youth League, whether they are building high-end real estate area and experience area on Taihe of Changda real estate, or visiting Changda's enterprise exhibition hall and building history hall, "building, making life better!" The concept of "green" and the exquisite architectural works are deeply attracted and moved by the members of the Youth League. &During the activity, the members of the Youth League felt the architectural works, the development process and the humanistic image of Changda. &The construction of "four cities" is the development direction and target task established by Weifang Party Congress, and also a part of Weifang's "one three four seven" general strategy. 1347 that is to say, we should focus on one general goal, ensure that the three are at the forefront, strive to build four cities and achieve seven new breakthroughs. The overall goal is to increase the Gross Regional Product by 8% annually during the 13th Five Year Plan period, and basically form a strong modern city. Three leading positions refer to the leading position in the province in building a moderately prosperous society in an all-round way, in implementing new concepts to promote transformation and development, and in deepening reform in important fields and key links. &We have reason to believe that the "one three four seven" goal of Weifang is strongly promoted by the conference.