ㄅㄨˋˋshìㄊㄞˋtàiㄕㄢshān

  1. 比喻不知不出地位本領水滸傳·》:小人有眼不識泰山一時兄長恕罪。」

can't recognize Mt Taishan (idiom)​; fig. not to recognize a famous person