[N-UNCOUNT 不可数名词]（对建筑物、道路、机器等的）定期维修，检修，保养 The maintenance of a building, vehicle, road, or machine is the process of keeping it in good condition by regularly checking it and repairing it when necessary.
...maintenance work on government buildings...
政府大楼的修缮工作
The window had been replaced last week during routine maintenance.
上周例行维修的时候换了窗户。
...car maintenance lessons.
汽车维修课程
2
[N-UNCOUNT 不可数名词]赡养费；生活费Maintenance is money that someone gives regularly to another person to pay for the things that the person needs.
...the government's plan to make absent fathers pay maintenance for their children.
使弃家的父亲支付孩子抚养费的政府计划
3
[N-UNCOUNT 不可数名词]（状态、进程等的）维持，保持 If you ensure the maintenance of a state or process, you make sure that it continues.
[usu N of n]
...the maintenance of peace and stability in Asia.
维护亚洲的和平与稳定
...the importance of natural food to the maintenance of health.
天然食品对保持健康的重要性
Oxford
main·ten·anceAWL/ˈmeɪntənəns; NAmEˈmeɪntənəns/noun[uncountable ]1maintenance(of sth) the act of keeping sth in good condition by checking or repairing it regularly 维护；保养◆The school pays for heating and the maintenance of the buildings.学校负担这些大楼的供热和维修费用。◆car maintenance汽车保养2maintenance(of sth) the act of making a state or situation continue 维持；保持◆the maintenance of international peace维护世界和平3( law 律) ( BrE) money that sb must pay regularly to their former wife, husband or partner, especially when they have had children together （依法应负担的）生活费；抚养费◆He has to pay maintenance to his ex-wife.他必须付给前妻生活费。◆child maintenance儿童抚养费◆a maintenance order (= given by a court of law)（法院下达的）生活费支付令☞see also
1the repairs, painting etc that are necessary to keep something in good condition: the cost of repairs and maintenancemaintenance of The caretaker is responsible for the maintenance of the school buildings. The theatres were closed on Saturday and Sunday for routine maintenance. Engineers are carrying out essential maintenance work on the main line to Cambridge. an evening class in car maintenancemaintenance crew/man/staff (=someone who looks after buildings and equipment for a school or organization)2the act of making a state or situation continuemaintenance of The purpose of the UN is the maintenance of international peace and security. The maintenance of a firm currency plays an important part in the battle against inflation.3British English money paid by someone who is divorced to their former wife or husbandSYN alimony: They have to find the fathers who abandon their children and make them pay maintenance.
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