maintain
We must maintain a firm attitude.
我们必须采取坚定的态度。
The plan is merely designed to maintain their nuclear superiority.
制定这个计划只是为了保持他们的核优势。
The factory cannot maintain current levels of production.
该工厂不能保持目前的生产水平。
He is too poor to maintain his family.
他太穷了，无法养活家人。
He can't maintain enough equilibrium to ride a bike.
他骑自行车不能保持平衡。
Part of my job is to maintain good relationship with our suppliers.
我的部分工作是同我们的供应商保持良好的关系。
Japan today simply stands too tall and too rich to maintain a low profile.
日本现在太醒目，太富裕了，很难再不引人注意了。
Mankind have been trying every means to maintain the balance of nature.
人类采用一切手段保持生态平衡。
He continue to maintain his technical innocence of any indictable offence.
他仍然声称自己从严格的法律意义上说并未犯有任何可以起诉的罪行。
The government has taken a measure to maintain the stability of prices.
政府已经采取了措施以确保物价稳定。
My business has been through a bad patch recently and I have been unable to maintain a reasonable profit margin.
最近我的买卖经历了一段不景气的时光，我已不能保持适当的利润率。
In order to maintain physical well being, a person should eat wholesome food and get sufficient exercise.
为了维持身体健康，一个人应该吃有益健康的食品，并经常锻炼身体。
It's hard to keep track of (ie maintain contact with) all one's old school friends.
与中学时的所有老校友都保持联系是很困难的。
If you are going to marry my daughter, I must ask if you can afford to maintain her in the manner to which she has been accustomed?
如果你打算娶我的女儿，那我就必须问问你是否能维持她原来习惯的生活方式？
Mindful of the need to maintain efficient communication, the board of directors decided to construct a new communication network.
董事会注意到维持有效通讯的需要，因此决定建立一个新的通信网。
A substance believed to maintain life indefinitely.
长生不老药被认为可以使生命无限的物质
A device that brings about and helps maintain equilibrium.
平衡器可以帮助达到平衡或保持平衡的装置
The policy of granting concessions to potential enemies to maintain peace.
绥靖政策为保持和平局面而向潜在的敌人做出让步的政策
A warden employed to maintain and protect a forest or other natural area.
国有森林员保护和维持森林等自然地貌的雇佣的看护人
An attempt to convey or maintain the appearance of refinement and elegance.
假派头试图表达或保持优雅和得体的外表的努力
Owning much unprofitable land but lacking the capital to improve or maintain it.
土地多而收入少的拥有大量不能获利的土地但是又缺乏资金加以改造或维持的
The practice of marrying the widow of one's brother to maintain his line, as required by ancient Hebrew law.
叔娶嫂制如古希伯来法律规定的弟弟与寡嫂结婚以维持哥哥的家系的一种风俗
The proxy firewall maintain context more easily than the packet filter firewall.
代理防火墙比包过滤器防火墙易于保持更多的上下文
We must try to maintain the equilibrium of supply and demand.
我们必须努力保持供求均衡。
A flight garment worn by astronauts and jet pilots that presses on the lower body to maintain the blood supply to the brain during rapid vertical acceleration.
抗荷衣宇航员或喷气机飞行员穿的飞行服，在快速垂直加速中增加身体下部的压力以保持脑部血液供应
A gearing mechanism of a motor vehicle engine that reduces the power output required to maintain driving speed in a specific range by lowering the gear ratio.
(汽车的)超速档机动车辆的一种齿轮装置，通过降低齿轮比率来减少为将车速保持在一定范围内而需要的输出力
As waves crested the sailor grabbed onto the handspike to maintain balance.
起浪时水手抓住绞盘棒以保持平衡。
The two countries have been trying to maintain their military equation.
这两个国家一直尽力维持他们在军事上的平衡。
We try to maintain good relation with our customer.
我们努力与客户保持良好的关系。
To use ski poles to maintain or gain speed.
（以滑雪棒）推进加速使用滑雪杖来保持或增加速度
We must maintain keen vigilance at all times.
任何时候我们都要保持高度的警惕。
She struggled to maintain her composure.
她竭力保持镇静。
My son can maintain himself now.
我儿子现在能自食其力了。
We must maintain friendly relations with them.
我们必须和他们保持友好关系。
Food is necessary to maintain life.
食物是维持生命所必需的。
Whatever betides,maintain your courage.
无论发生什么事，都要保持你的勇气。
How do the populations maintain this homeostasis?
种群如何能维持这种内稳定状态呢?
If he can maintain this speed he will win the race.
如果他能保持这种速度，就能赢得这场赛跑。
She tried to maintain a businesslike look.
她想要保持一种有条不紊的样子。
We must maintain an open mind on such questions.
在这种问题上心胸要开阔一些。
We shall maintain close ties with the masses.
我们应和群众保持密切联系。
We should maintain close ties with the masses .
我们应和群众保持密切的联系。
He has to maintain his wife and five children .
他不得不养活妻子和5个孩子。
Utility companies could install and maintain them.
公用事业公司可以安装并保养它们。
Lets say a car needs 18 HP to maintain 60 MPH.
让说一辆小汽车需要18惠普保持60英里/小时。
They were determined to maintain their right.
他们决心维护他们的权利。
What does the theory of plate tectonics maintain?
这板块构造学说的理论讲些什么?
Police were sent for to maintain order.
请了警察来维持秩序。
To maintain or affirm against opposition.
反驳针对反对意见来坚持或肯定
Whatever may betide, maintain your courage.
无论发生什么事，都不要惊慌失措。