turn over a new leaf
改过自新;重新开始;改变行为方式
口语·表达改过自新
英文释义
to make a fresh start or change one's behavior or attitude for the better
例句
After the accident, he turned over a new leaf and started exercising daily.
典故来源
源于书籍翻到新一页的比喻,象征重新开始或改变行为。