As the capital of China's central region and one of its largest cities, Chengdu is known for its rich cultural heritage and modern development. In recent years, the city has become increasingly popular among foreign tourists and investors, thanks to its unique blend of traditional Chinese culture and modern business opportunities.

However, there is a growing gap between the promotion of Chengdu's edge cities like Chang'an and those in other parts of the province. This gap is due in part to the fact that some of these areas lack the necessary infrastructure and resources to support their growth as centers of industry and commerce.

In order to overcome this challenge, it is important for the government to invest more heavily in promoting these areas. This could involve developing new industries or creating new business opportunities, such as developing new technology sectors or expanding existing ones.

Furthermore, it would also be beneficial for the government to provide greater support to these areas by offering incentives for businesses to move into the area, such as tax breaks or subsidies. These measures can help to attract more investment and create jobs for local residents.

Overall, while there is still much work to be done in promoting Chengdu's edge cities like Chang'an, investing in these areas and providing the necessary support will undoubtedly lead to greater prosperity and success for the entire province.