用作定语
▲~+n.
The town is a residential suburb.这个小镇是市郊住宅区。
In recent years the residential building costs soar.近几年住宅建设费用飞涨。
It's against the law to build factories in this residential zone.在这个居民区建工厂是违法的。
In time they founded other three residential quarters in the same district.后来他们在同一地区又建起了三个住宅区。