I'll keep the letter as a precaution.

我要保存这封信，以防万一。

《牛津词典》

We want to keep the real issues in focus.

我们要让真正的问题受到关注。

《柯林斯英汉双解大词典》

It's important to keep the punters happy.

重要的是让顾客满意。

《牛津词典》

But the next year, the Academy decided to keep the names of the winners a secret until the awards ceremony.

VOA: special.2009.02.20

You can adapt it for any sort of possible purpose, but the crucial thing is to keep the distinction between meaning and significance clear."

你可以为任何目的将其改编，但重要的是你必须,将意思和意义分清楚“

耶鲁公开课 - 文学理论导论课程节选

you're the face, you're the person who's supposed to keep the troop, you know, the, the rank and file motivated.

你是球队的标志，是保持球队战斗力和激情的主心骨。

足球部队长的领导力 - SpeakingMax英语口语达人

Citi has struggled to keep the rate of expense growth below the rate of revenue growth.

FORBES: Turmoil At Citi

Lighting changes over the course of the day to keep the focus on the outdoors.

BBC: Safari by water in southern Africa

To keep the lights on, they would continue to work for the big developers.

FORBES: Audacious Birds