每日商务英语 第4期:费解之事

a head scratcher 费解之事

英文释义 

(FORMAL) Something that confuses; a puzzler.

例句 
EXAMPLE: My friend's sudden departure from the company at which he worked happily for ten years isa real head scratcher, and I can't understand it.

我的朋友突然离开他快乐工作了十年的公司实在让人费解，我想不明白。