Definition
something completely unexpected and very surprising.
晴天霹靂
Her sudden resignation came as a bolt from the blue.
她的突然辭職讓人措手不及。
It was a bolt from the blue when he was told he had won the lottery.
當他被告知贏得彩票時，這完全出乎意料。
The news of the company's sudden closure was a bolt from the blue for all the employees.
公司突然關閉的消息對所有員工來說都是晴天霹靂。