to maintain

She struggled to maintain the charade of not being afraid.

她竭力装出不害怕的样子.

It costs five thousand dollars a year to maintain this house.

管理维修这所房子,每年要花5000美元.

He has to maintain a large family on a small salary.

他不得不依靠很少的工资养活一家人.

The house costs a fortune to maintain.

维修这幢房子花销不菲。

We must do our best to maintain sales at their usual rate.

我们要尽力使销售额保持在平日的水平上.

It's hard to maintain competitive pricing.

维持具有竞争力的定价非常困难。

The superpowers pledged to maintain symmetry in their arms shipments.

超级大国承诺在武器运输方面要保持数量均衡。

The psychiatrist must learn to maintain an unusual degree of objectivity.

精神科医生务必要学会保持超乎寻常的客观态度。

The authorities have said they will attempt to maintain essential services.

当局已表示他们将努力维持公共基础服务。

The company has struggled to maintain its domination in the marketplace.

该公司奋力维持其市场优势.

The idea is to maintain the regularity of the heartbeat.

问题就是要维持心跳的规律性.

Vast sums are needed to maintain the infrastructure.

保养基础设施需要巨额款项.

The pilot throttles back slightly to maintain level flight.

飞行员稍稍减速，以保持水平飞行。

He has the power to use force to maintain public order.

他掌握着动用武力维持公共治安的权力。

Germany and France pledged to maintain the differential between their two currencies.

德国和法国承诺保持两国货币之间的差别汇率。