“市区的”的英语可以翻译为：cantonal，[法] urban ...

市区的主要街道装饰着各种颜色的彩旗.The city's main streets were decked with multi - coloured banners.这是环绕市区的环路。This is the ring road that circles the city.这部新摩托车在市区的交通中很便利.This new motorcycle is really handy in city traffic....