refuse to correct one's errors 屡教不改

屡教不改，汉语成语，意思是多次教育，仍不改正（refuse to mend one's ways despite repeated education）。可以翻译为“turn a deaf ear to somebody's repeated criticisms， refuse to correct one's errors”等。

例句：

对于作恶多端而又屡教不改的人，一定要给予严厉的法律制裁。

Those who have done all kinds of evils and refuse to mend their ways after repeated education must be severely punished according to law.