keep a level head

• 保持镇定

keep a level head的用法和样例：

例句

1. It is not everyone that can keep calm in emergency.
   不是每个人都能在危急时刻保持镇定的。
2. You should keep your hair on at that time.
   那时你应保持镇定。

词汇搭配

• keep a level head 保持镇定