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。

《柯林斯英汉双解大词典》

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。

《柯林斯英汉双解大词典》

To reach that goal, you need to maintain your network.

为了达到那一目标，你需要维持你的人际网络。

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While the Internet's use of language might change rapidly over the next few years, Johnson,Crystal and Jansen all point out that educators need to ensure that students maintain an academic understanding of the use and rules of language.

VOA: standard.2010.01.16

In order for life to proceed, you need to maintain a constant internal environment.

为了维持生命,人体的内环境需要保持稳定

耶鲁公开课 - 生物医学工程探索课程节选

We need to find more creative ways to discipline our students and to maintain control in the classroom.

我们需要用更有创意的方法约束学生，维持课堂纪律。

反对体罚 - SpeakingMax英语口语达人

Ah, comes the reply, we need to maintain price stability in order to support the mystique.

ECONOMIST: THE DIAMOND BUSINESS

Syracuse will need to maintain that energy against Marquette, which boasts an even deeper rotation.

WSJ: A Big East Rematch With Final Four Stakes

Charles Rotblut : Well, I think investors need to maintain an allocation towards bonds.

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