rules defining the territorial boundaries and functional limits of the local state规定本州区域边界和职能权限的规章

modern, functional furniture实用的现代家具

an admirably clear and functional design一个非常清晰实用的设计

The decor is functional.装潢很实用。

We have fully functional smoke alarms on all staircases.我们在每层楼梯上都安装了功能良好的烟雾报警器。