Once in a while they're naughty: I did get word of a fellow who'd made a key safe by hollowing out one of my books.

有的时候他们很调皮：我听说有个家伙把我的书挖空做了一个安全钥匙。

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Will be the key to switch from the key slot pull out all the keys placed in a safe place.

将钥匙从钥匙开关的插槽中拔出，将所有钥匙放置在安全的地方。

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It's safe to assume that stress is a normal part of life for all of us, but the key is making sure it doesn't run our lives or grow out of control.

坦白说有压力是我们所有人正常生活状态里的一部分，重要的是我们不能让压力搅乱我们的生活，或者让压力超出了我们的控制范围。

youdao

Knowing how to stay safe and warm is key to staying out of trouble.

CNN: Surviving winter weather: Would you know what to do?

"One of our key objectives is to search for, capture and drive out terrorists who have found safe haven in Iraq, " Central Command said in a statement.

CNN: U.S. captures mastermind of Achille Lauro hijacking