效区 meaning in Chinese

skirt

Suburban shopping centers were springing up all over america .
效区的商业中心在美国如雨后春笋般地兴起。
That chicago businessman tried to branch out by opening several restaurants in the suburbs
那个芝加哥商人想在效区开几家餐馆以扩大他的业务。
Lebanese security officials say israeli warships have been firing on the city southern suburbs
黎巴嫩安全机构称以色列战船袭击了城市南部的效区。