city group的用法和样例：
例句
- Reasonable planning and construction of Changsha Zhuzhou Xiangtan Logistics Park are of great significance to the development of the city group.
摘要合理的长株潭物流园区规划建设对长株潭城市群发展具有重要意义。 - The functions of the industry clusters in thedevelopment of city groups include the drive mecha-nism and restriction mechanism.
产业集群在城市群发展中的作用机制有驱动机制和约束机制。
