We all know how to keep the body healthy and how to keep it healthy, right?

我们都知道怎样保持身体的健康还有怎样保持牙齿卫生，对不对？

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If we did have a way to store digital data long-term, the next question would be what to preserve, and how to keep it safe but easily discoverable.

如果我们找到了长期储存数字化信息的方法，那么接下来要解决的问题便是我们应该保存哪些重要的数据，以及如何保证信息的安全，并且使人类方便地辨认出这些信息。

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I don't have to tell you how important it is for you to keep your mouth shut about all this.

我不必告诉你对这件事保密有多么重要。

《柯林斯英汉双解大词典》

"If we keep defining our happiness through how much we consume it's going to lead to tragic end,"

VOA: standard.2010.01.23

So let's take our one model that we keep going back to Equation of state, and just see how it works.

我们回到经常使用的理想气体模型,或者说状态方程。

麻省理工公开课 - 热力学与动力学课程节选

and so it's just like, you kind of like learn how to keep the world a better place, like make it a better place.

内容是怎么样让世界变得更美好，更适合居住。

高中生活怎么样？ - SpeakingMax英语口语达人

"This is a big challenge for us - how to keep it, " he said.

BBC: 'Genius' Daley tipped to dominate

Do you have any suggestions as to how to keep it physically secured?

ENGADGET: Ask Engadget: how do you secure a laptop without a Kensington slot?

This was not the place to find a free-wheeling exchange of ideas on what the economy needs, and how to keep it moving forward.

NPR: A GOP Consensus at the Economic Conference