He wore a straw hat to keep his balding head from getting sunburned.

他戴了一顶草帽，以防止开始变秃的头被晒伤。

《柯林斯英汉双解大词典》

You'll need to keep a clear head for your interview.

你面试时需要保持清醒的头脑。

《牛津词典》

She was able to keep her head and not panic.

她当时能够镇定自若、不慌张。

《柯林斯英汉双解大词典》

The C stands for cover. Wear a hat and scarf to keep heat from escaping through the head, neck and ears.

VOA: special.2009.12.23

But when we're thinking about actual wave behavior of electrons, it's just important to keep in the back of our head that some areas have positive amplitude and some have negative.

电子的波动行为时,我们，要记住,某些地方是正的,某些地方是负的,当我们讲到。

麻省理工公开课 - 化学原理课程节选

A man who loses his job tries to keep his head above water until he finds a new job.

VOA: special.2009.05.10

Unless you managed to keep your head underwater, to immerse yourself in the endless metonymic shuffling of objects, it would be intolerable.

NEWYORKER: Raj, Bohemian

His backup plan, if he can't split his firm, is to keep his head count low or to invest in machinery that would replace workers.

WSJ: Small Business Looks for Ways to Cope With Health Law

"It's very important to keep your head down, not to antagonise them (the kidnappers) in any way, not to get agitated or indeed violent, " he said.

BBC: In Amenas road sign