serviceable

a. 有用的,耐用的

The tyres are worn but still serviceable.

这些轮胎已磨损, 但尚可用.

He stated that in six weeks rush work would be required to repair the boilers to make them serviceable.

他说，修理这这些锅炉，使之可以使用，需要六周的紧张工作。