functional

1. ADJ Functional things are useful rather than decorative. 实用的

...modern, functional furniture. …现代、实用的家具。

2. ADJ Functional equipment works or operates in the way that it is supposed to. 起作用的

We have fully functional smoke alarms on all staircases. 我们在所有楼梯上都装有运转完全正常的烟雾报警器。