jī xí chéng sú
积习成俗
[accumulate old habit becomes custom] 长期保持下来的习惯逐渐沿革演化为一种固定风俗
◎ 积习成俗 jīxí-chéngsú [accumulate old habit becomes custom] 长期保持下来的习惯逐渐沿革演化为一种固定风俗