Definition
Unable to think or behave normally due to extreme worry, unhappiness, or anger.
（因憂慮、不高興或憤怒而）精神錯亂，發狂
The news of her brother's accident drove her out of her mind.
她哥哥出車禍的消息讓她精神錯亂。
He was out of his mind when he realized his keys were locked in the car.
當他發現鑰匙鎖在車裡時，他簡直要瘋了。
I was out of my mind with worry when my daughter didn't come home last night.
昨晚我女兒沒回家時，我擔心得要瘋了。
Acting in an extremely foolish or irrational manner; behaving as if mentally ill.
極為愚蠢的；瘋狂的
You must be out of your mind to go swimming in this weather!
你一定是瘋了，才會在這種天氣去游泳！
He must be out of his mind to take the test without preparing.
他一定是瘋了，才會不準備就去參加考試。
They are out of their minds to cycle through the city during rush hour.
他們一定是瘋了，才會在高峰期騎自行車穿過城市。