有错就改改了再犯
[yŏu cuò jiù găi găi le zài fàn]
Translated to 'If Mistakes Have Been Made They Must Be Corrected; Once Corrected Mistakes Should Be Rectified Again', this is an exaggerated form implying one's readiness to admit mistakes, try to correct them, but acknowledges repeating the mistake anyway. It’s humorous but also realistic about human nature showing an understanding of common imperfection.