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1·The house costs a fortune to maintain.

维修这房子花费巨大。《柯林斯英汉双解大词典》

2·The army has been sent in to maintain order in the capital.

军队被调进首都维持治安。《牛津词典》

3·The government was right to maintain interest rates at a high level.

该政府将利率维持在一个高的层面是正确的。《柯林斯英汉双解大词典》

4·Few people nowadays are able to maintain friendships into adulthood.

现今很少有人能够把友谊维持到成年。《柯林斯英汉双解大词典》

5·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。《柯林斯英汉双解大词典》

6·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。《柯林斯英汉双解大词典》

7·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。《柯林斯英汉双解大词典》

8·It's incredibly hard to maintain patience at all times with your children.

始终对孩子保持耐心是非常困难的。

9·To maintain a balance, big apex fish may be as important as the small one.

为维持平衡，生态系统“顶点”的大鱼可能和小鱼一样重要。

10·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。