The outline document for the development of the Greater Bay Area focuses on spatial layout and economic planning. For many ordinary people, it is a top-level design and may not be able to see its meaning. Substantial progress needs to rely on major cooperation platforms such as Shenzhen Qianhai, Zhuhai Hengqin, Guangzhou Nansha and the Shenzhen-Hong Kong Loop before the public can see the results. He Lifeng, director of the National Development and Reform Commission, once proposed "targeted selection of major cooperation platforms." The "Qianhai Plan" and "Hengqin Plan" were released last year, and the "Nansha Plan" also caught up this year, with many projects achieving minor successes. .