郡治安官

例句：

1. 1.The county government is responsible for managing the local economy.
   县政府负责管理当地经济。
2. 2. The county fair is a popular event in our town.
   县博览会是我们镇上的一个热门活动。
3. 3. The county seat is the center of government and administration in the area.
   县治是该地区政府和行政部门的中心。