Definition
To be suddenly shocked and confused by an unexpected and unpleasant event.
震驚不已
Many employees didn't know what hit them when the company announced the restructuring.
許多員工在公司宣布重組時不知所措。
She didn't know what had hit her when she was informed of her termination.
當她被告知被解雇時，她完全不知道發生了什麼事。
After receiving the harsh criticism, he didn't know what had hit him.
在收到嚴厲的批評後，他完全不知道發生了什麼事。