例句
the cost of repairs and maintenance
维修保养费
The theatres were closed on Saturday and Sunday for routine maintenance .
戏院周六和周日关闭进行例行维护。
Engineers are carrying out essential maintenance work on the main line to Cambridge.
机修工正在对通往剑桥的干线进行必要的养护。
an evening class in car maintenance
汽车保养的夜校课程