synthetic city的用法和样例：
例句
- One can conveniently get what one wants by the comprehensive services in the city.
一个人可以很方便地通过城市里的综合服务得到他想要的东西。 - In recent years, the parking questions in the polyclinic of the city center area had increasingly emerged in our country.
近年来，我国城市中心区综合医院停车问题日益凸显。
