因为frightened out of their wits 跟terrified 是同义的.
terrified adj.很害怕的,极度惊慌的,吓坏了的
She was terrified at the thought of being alone.
她一想到孤零零的独自一人就惊恐不安.
Do you have any idea how terrified I was?
你知道当时我多惶恐吗?
The divers have been frightened out of their wits by giant fish bumping into them as they work.
潜水员曾在他们工作时被撞到他们身上的大鱼吓得惊慌失措.