To mend one's ways and start afresh; to turn over a new leaf; to reform oneself.
经过这次教训，他决定改行自新，努力成为一个对社会有用的人。
After this lesson, he decided to mend his ways and start afresh, striving to become a useful person to society.
Next Idiom
To mend one's ways and start afresh; to turn over a new leaf; to reform oneself.