maintain

英[men'tein]美[men'ten]

vt.
1.[~ sth (with sth)]保持或维持某事物
2.在财务上支持（某人），赡养，扶养
3.保养，维修（某物）
4.断言（某事）属实，坚持

时　态：maintained,maintaining,maintains

名　词：maintain'er

形容词：maintain'able

同反义词

同：	[v.] assert, conserve, hold, keep

词义辨析

assert，affirm，allege，maintain，testify，claim

这些动词均含有“断言，声称”之意。
assert主观意味强，指自认为某事就是如此，而不管事实如何。
affirm侧重在作出断言时表现出的坚定与不可动摇的态度。
allege多指无真凭实据，不提供证据的断言或宣称。
maintain与assert近义，但前者指坚决维护某种主张或观点。
testify多指在法庭作证，庄严地宣称自己所说属实。
claim可与assert换用，但语气弱一些，侧重指行为自己的权利提出要求他人承认。

参考例句

Dietary fiber bulking agents are important in human nutrition because they maintain normal functioning of the gastrointestinal tract.
膳食纤维填充剂在人体营养方面很重要是因为它们维持胃肠道正常的功能。收藏
Historical experience shows that unrestrained arms build-up will surely hamper economic growth and will not help maintain peace and security.
历史经验表明，无节制地扩充军备必然影响经济发展，也无助于维护和平与安全。收藏
A downturn in a market challenges companies to maintain their positive cultures.
在市场低迷时期,要保持优良的企业文化是一个很大的挑战。收藏
Davidson, a nurse, and a dietitian worked out a diet designed to maintain Sue Ellen's proper body weight.
戴维森，一个护士和一个营养学家三人共同制定了一个保持埃伦适当体重的饮食计划。收藏
China would like to join hands with Bahamas to continue to maintain the momentum of exchanges of high-level visits in order to enhance mutual trust.
中方愿同巴方一道努力，继续保持高层互访势头，增进政治互信。收藏

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英英解释

动词解释：

keep in a certain state, position, or activity; e.g.,
- keep clean
- hold in place
- She always held herself as a lady
- The students keep me on my toes
[同] hold, keep, maintain
keep in safety and protect from harm, decay, loss, or destruction
- We preserve these archeological findings
- The old lady could not keep up the building
- children must be taught to conserve our national heritage
- The museum curator conserved the ancient manuscripts
[同] conserve, keep up, maintain, preserve

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