the act of keeping sth in good condition by checking or repairing it regularly 维修；保养◆We are responsible for the cleaning and maintenance of the building. 我们负责大楼的清洁和维修。◆building/car/road maintenance 建筑物／汽车／道路维修◆The maintenance work is done by an outside contractor. 维修工作由一家外部承包商完成。◆The plant is undergoing essential maintenance. 工厂正在进行基础保养。SYNupkeep ⨁to carry out / do maintenance 实施／进行维修⨁day-to-day / essential / planned / preventive / routine maintenance 日常／基础／计划中的／预防性／常规保养⨁sth needs / requires / undergoes maintenance 某物需要／要求／接受保养⨁a maintenance agreement / contract / contractor 维修协议／合同／承包商⨁maintenance staff / work / workers 维修人员／工作／工人
the act of making a state or situation continue 维持；保持◆the maintenance of a high dividend 高红利的维持◆price maintenance 价格维持