Urban agglomerations are composed of cities with different levels and scales. which are closely related to each other and jointly affect the development of the entire region. More than 60 years have passed since the concept was put forward. and there is a need to further enrich its connotation in terms of sociology. https://www.bekindtopets.com/great-choice-Sporn-Non-Pulling-Mesh-Harness-Small-top-grab/