Definition
To improve one's behavior after having acted improperly.
改过自新，改正不良的行为。
After being warned multiple times, he finally decided to mend his ways.
在多次被警告后，他终于决定改过自新。
If he wants to keep his job, he needs to mend his ways.
如果他想保住工作，他需要改正自己的行为。
She realized her mistakes and was determined to mend her ways.
她意识到自己的错误，并决心改过自新。