正襟危坐[zhèng jīn wēi zuò]
词典sit square：正襟危坐。
词典正襟危坐的反义词
词典be all seriousness：正襟危坐。
词典dress well buttoned：正襟危坐。
词典sit in great state：正襟危坐。
正襟危坐[zhèng jīn wēi zuò]
sit square; be all seriousness; dress well buttoned; sit in great state; sit rigidly upright; sit solemnly as show of respect; sit up properly; straighten one's clothes and sit properly