functional

Although the old radio looks battered, its internal components are still fully functional.

(Chinese) 虽然这台旧收音机看起来破旧不堪，但其内部组件仍能正常工作。

The elevator will remain functional while the technicians perform basic maintenance on the cables.

(Chinese) 在技术人员对电缆进行基本维护时，电梯将保持正常运转。