保持冷静

• keep one's head
• keep one's hair on
• keep cool
• remain cool

例句

1. 我们在危险的时候应该保持冷静。
   We should keep our composure in danger.
2. 她在危难中总能保持冷静、平静和镇静。
   She always remains cool, calm and collected in a crisis.
3. 最好保持冷静。
   The best thing is to keep cool.
4. 即使在争辩时，你也要尽力保持冷静。
   Even when you argue, you should try to keep cool.
5. 保持冷静！
   Keep cool!