懂中文 Dong Chinese

振聋发聩

zhèn​lóng​fā​kuì

lit. so loud that even the deaf can hear ; rousing even the apathetic

Definitions

振聋发聩 (振聾發聵) 

zhèn​lóng​fā​kuì

lit. so loud that even the deaf can hear (idiom); rousing even the apathetic

Sources