名詞 maintenance:

1. activity involved in maintaining something in good working order
   同義詞：care, upkeep
2. means of maintenance of a family or group
3. court-ordered support paid by one spouse to another after they are separated
   同義詞：alimony
4. the act of sustaining life by food or providing a means of subsistence
   同義詞：sustenance, sustentation, sustainment, upkeep
5. 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
   同義詞：criminal maintenance

1. Maintenance of PC is in my element.
   我對電腦的維修保養(yǎng)很在行。
2. A maintenance manual gives diagrams and instructions for repairing your car.
   維修手冊向您提供修理汽車所需的圖表和說明。
3. The machinery requires constant maintenance.
   這些機器需要經(jīng)常保養(yǎng)維修。
4. Regulation and control of the affairs of a community, especially with respect to maintenance of order, law, health, morals, safety, and other matters affecting the public welfare.
   警政對一個社區(qū)的事務(wù)的管理和控制，特別是對有關(guān)秩序、法律、健康、道德和安全的維護，以及其它影響到公共福利的事情
5. He's taking classes in car maintenance.
   他正在上汽車維修課。
6. He had to work hard for the maintenance of his family.
   他為了養(yǎng)家不得不去拼命工作。

main.te.nance

n.（名詞）
The act of maintaining or the state of being maintained:
保持：維持的動作或者被維持的狀態(tài)：
例句：
the maintenance of family traditions.
家族傳統(tǒng)的保持

The work of keeping something in proper condition; upkeep.
養(yǎng)護：使某事物處于正常的工作狀態(tài)；維修

Provision of support or livelihood.
生計：維持或謀生的必需品
Means of support or livelihood:
維持或謀生的財富：
例句：
an income that barely provided maintenance.See Synonyms at livelihood
收入不足以維生參見 livelihood

Law The unlawful meddling in a suit by providing either party with the means to carry it on.
【法律】 （對訴訟一方）非法的干涉：通過資助一方進行訴訟的方式非法干涉一起訴訟

來源：
Middle English maintenaunce
中古英語 maintenaunce
from Old French maintenance
源自 古法語 maintenance
from maintenir [to maintain] * see maintain
源自 maintenir [維持] *參見 maintain