an area on the edge of a large town or city where people who work in the town or city often live

Box Hill is a suburb of Melbourne. 博士山属于墨尔本的近郊住宅区。

We drove from middle-class suburbs to a very poor inner-city area. 我们从中产阶级的近郊住宅区驱车前往市中心的贫民区。

the outer area of a town, rather than the shopping and business centre in the middle

The company decided to relocate to the suburbs because the rent was much cheaper. 公司决定搬到城郊去，因为那里的租金便宜得多。