在居民区或是校区这类地区行驶时，都需要有提醒车主减速的交警。

When driving through a residential area or where there is a school, you've got to have speed policemen.

youdao

在居民区或是校区这类地区行驶时，都需要有提醒车主减速的交警。

When driving through a residential area or where there is a school, you've got to have speed policemen.

youdao