a cool head的用法和樣例：
例句
- It's a distinct advantage around here to keep a cool head when things begin to go wrong.
事情開(kāi)始出差錯時(shí)，保持清醒的頭腦是這里的一個(gè)顯著(zhù)的優(yōu)點(diǎn)。 - He has a cool head at all times.
他不論什么時(shí)候都有清醒的頭腦。 - Keep a cool head when thing go wrong.
出問(wèn)題時(shí)要保持冷靜的頭腦。 - The occasion calls for a cool head.
在這樣情況下需要有冷靜的頭腦。
