AI 說美國民用建築使用壽命為 74 年;
中國民用建築使用壽命為25-30年
search: china's civil building lifespan
These cities were often thrown up fast and with little attention to sustainability; the average life span of a building in China is only 25 to 30 years. (By comparison, the average lifespan of a U.S. building is 74 years.
