在做决定之前，先保持头脑清醒。

Before making a decision, first keep a clear mind.

面对挑战时，试着保持头脑清醒。

When facing challenges, try to keep a clear mind.

考试时，保持头脑清醒非常重要。

During exams, it is very important to keep a clear mind.

在紧急情况下，你必须保持头脑清醒。

In an emergency, you must keep a clear mind.

运动员在比赛中需要保持头脑清醒。

Athletes need to keep a clear mind during competitions.

他在辩论中始终保持头脑清醒。

He remained clear-minded throughout the debate.

在谈判合同时保持头脑清醒很重要。

It's important to stay clear-headed when negotiating a contract.

在紧急情况下，他总是保持头脑清醒。

In emergencies, he always stays clear-minded.

运动后你可以保持头脑清醒4-10小时。

You can keep your head clear for 4-10 hours after exercise.

你必须保持头脑清醒.

You must keep your head clear.