名词
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.
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.
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.
1. activity involved in maintaining something in good working order
e.g. he wrote the manual on car care
2. the unauthorized interference in a legal action by a person having no interest in it (as by helping one party with money or otherwise to continue the action) so as to obstruct justice or promote unnecessary litigation or unsettle the peace of the community
e.g. unlike champerty, criminal maintenance does not necessarily involve personal profit
Synonym: criminal maintenance
3. the act of sustaining life by food or providing a means of subsistence
e.g. they were in want of sustenance
fishing was their main sustainment
Synonym: sustenancesustentationsustainmentupkeep
4. court-ordered support paid by one spouse to another after they are separated
Synonym: alimony
5. means of maintenance of a family or group