Something, such as a startling or shocking piece of news, that is similar to a crash of thunder in suddenness or violence. 晴天霹靂似的消息或事件如驚人的消息等在突然性和猛烈性方面與一聲響雷相似的東西
A single sharp crash of thunder. 霹靂一聲刺耳的雷響
There was a crash of thunder, then the storm struck. 一聲驚雷過後,狂風暴雨突然襲來。