ㄓㄨㄥˋzhòngˊㄊㄞˋtàiㄕㄢshān

  1. 比喻價值意義深重漢書··司馬遷》:重於泰山輕於鴻毛。」東周列國·》:重於泰山。」輕於鴻毛

heavier than Mt Tai (idiom)​; fig. extremely serious matter