You must keep your head cool.

你必须保持头脑清醒。

youdao

And almost five years later, I think in such a hot city, cold air can keep my head cool.

将近五年过去了，我觉得在这个尤其炎热的城市里，冷空气可以保持我头脑冷静。

youdao

You need a cool head and nerves of steel on the way to your dream.

在追求梦想的途中，你需要有冷静的头脑和非常的魄力。

youdao

"There is no pressure. I have gone through pressure up to this time, so I need a cool head.

VOA: standard.2009.10.15

Now, I don't have to fill my head 6 with 2.18 times 10 to the minus 18. 13.6, that's a cool number. I can remember that.

现在，我不需要记住,2。18乘10到负18，13。,那数字太给力了，我可以记住它。

麻省理工公开课 - 固态化学导论课程节选

His apparent legacy to later generations was the advice that keeping your head cool and your feet warm would keep the doctor away.

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You'll need a cool head if the bidding gets overheated, but the boats have clear title.

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Neil will tell us how to profit by keeping a cool head while the markets panic.

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