英汉词典

1. （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

    e.g. ...maintenance work on government buildings...
           政府大楼的修缮工作
    e.g. The window had been replaced last week during routine maintenance.
           上周例行维修的时候换了窗户。

2. 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.

    e.g. ...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. （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.

    e.g. ...the maintenance of peace and stability in Asia.
           维护亚洲的和平与稳定
    e.g. ...the importance of natural food to the maintenance of health.
           天然食品对保持健康的重要性