The superpowers pledged to maintain symmetry in their arms shipments.
这些超级大国承诺要在其武器运载上保持数量相等。
By 492 votes to 391, the federation voted to maintain the status quo.
联盟以492票对391票投票决定维持现状。
To maintain her weight, she simply chooses fruits and vegetables over fats and sweets.
为了保持自己的体重，她选择只吃水果和蔬菜而不吃肥肉和甜食。
Wage rates must be maintained in order to maintain the purchasing power of the consumer.
必须维持工资率以保持消费者的购买力。
It allows the train to maintain a constant speed through the twists and turns of existing track.
它可以让火车在现有蜿蜒盘旋的轨道上保持匀速。
Supporters say open source software is more secure, cheaper to buy and maintain and easier to customize.
拥护者认为开放源代码软件更安全，购买价格及维修成本也更为低廉，并且更容易定制。
He emphasized the need to maintain Britain's defences at a level sufficient to deal with the unexpected.
他强调需要将英国的防卫力量维持在足以应付突发事件的水平。
Industry representatives made it clear that their commitment was only to maintain the extent of forests, not their biodiversity.
业界代表们申明他们只承诺维持森林的规模而不是其生物多样性。
In some states, revenues from the gasoline tax are used to build and maintain roads.
在一些州，汽油税的收入被用来修建和维护道路。
How to maintain sustainable development is a matter of significant importance facing all countries.
如何保持可持续发展是所有国家面临的一个重大问题。
The key to the exercises presented below is to maintain good form and don't look sloppy stretching.
下面的练习的关键是保持良好的姿势，拉伸不要看起来草率。
There were no longer enough fish in the sea for the stock to maintain itself, let alone an industry.
海里已经没有足够的鱼来维持鱼类自身的生存，更不用说维持一项产业了。
We need to find more creative ways to discipline our students and to maintain control in the classroom.
我们需要用更创新的方法约束学生，维持课堂纪律。
Air France was trying to maintain its full long-haul schedule while canceling some flights on other routes.
法国航空试图维持其排满的长途货运日程，同时取消了其他部分线路的航运。
Any significant changes should be deferred to a future generation of the solution to maintain its stability.
任何重大更改都应推迟到该解决方案的下一代，以保持其稳定性。
Some analysts estimate that food production will need to be raised by 50 percent to maintain current levels.
一些分析人士预测，粮食产量需要提高50%才能维持目前的水平。
He was unable to maintain the image of the perfect gentleman for which he had succeeded in passing at first.
他已无法维持他最初的完美绅士的形象了。
The emerging system through which private companies maintain toll roads in some states is a classic BOT model.
私营公司在一些州维护收费公路的新兴系统是典型的BOT模式。
Learning memory systems, mental sports and juggling are all wonderful ways to maintain a vibrant, lively mind.
学习记忆系统，脑力运动和杂耍都是保持大脑活力的好方法。
"You couldn't maintain all of those weak ties on your own," says Jennifer Golbeck of the University of Maryland.
“靠自己你是无法维持所有那些薄弱的联系的。”马里兰大学的珍妮弗·高尔贝克说。
People only become true celebrities when they maintain a high profile both in their professional and private lives.
人们只有在事业和私生活上都保持高调的时候才会成为真正的名人。
Sometimes parents get exhausted and frustrated and are unable to maintain a tolerant and composed style with their kids.
有时父母会感到疲惫和沮丧，不能对孩子保持宽容和冷静。
The Boomerang Nebula's expansion creates a kind of cosmic refrigerator, allowing the gases to maintain their unusual cool.
回飞棒星云的膨胀创造了一种宇宙冰箱，使气体维持其异常的寒冷。
For the Earth to maintain a constant average temperature, such emissions from the planet must balance incoming solar radiation.
为了使地球保持恒定的平均温度，来自地球的这种辐射必须平衡入射的太阳辐射。
Another experimenter, Hamner, however, discovered that hamsters from California maintain their original rhythms even at the South Pole.
然而，另一名实验人员哈姆纳发现，即使在南极，来自加利福尼亚的仓鼠也能保持它们原来的节奏。
Professional fashion models are particularly vulnerable to eating disorders resulting from occupational demands to maintain extreme thinness.
专业时尚模特尤其容易因保持极度苗条的职业需求而出现饮食失调。
The UN is trying to maintain a dead zone between the warring groups.
联合国正试图在交战方之间保留隔离带。
His critics maintain that he's responsible for many of Algeria's ills.
他的批评者坚持认为他对阿尔及利亚的许多问题负有责任。
He excused himself by saying he was "forced to rob to maintain my wife and cat."
他为自己开脱，说是“为养活妻子和猫才迫不得已去抢劫的”。
He was arguing with the king about the need to maintain the cavalry at full strength.
他在和国王讨论保留骑兵全部兵力的必要性。
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