Read Edit View history 正襟危坐 zhèngjīnwēizuò sit upright Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 正襟危坐 · zhèngjīnwēizuò · sit upright 2026/03/04 正襟危坐 zhèngjīnwēizuò sit upright to sit upright and still in a formal manner 他在老师面前正襟危坐，不敢有半点马虎。 idiom created sense Mar 4, 2026, 02:25 AM