Building-centered business circle. In the building business circle, there are abundant building resources, including office buildings, commercial centers, hotels and so on. These buildings provide sufficient passenger flow and business opportunities for the business circle. At the same time, the business content of the building business circle is also very rich, including retail, catering, entertainment, fitness and other aspects, which can meet people's diversified consumption needs. Refers to the business circle with the business and services in and around the building as its main business content.