To be kind is to correct mistakes and do good deeds.

Know what you have done, and you must change when you realize that you are wrong.

If you know what you have done and realize that you are wrong, you can correct it.

Radical rectification: fundamental rectification; Qingyuan: Clean up from the source. Carry out fundamental rectification and cleaning up from the source. Metaphor fundamentally rectify and clean up.

End-to-end: correction and cleaning. Ben: Not at all. Source: root cause. It means fundamentally rectifying and cleaning up.

Vulgarity refers to correcting and changing bad social customs and folk customs.

Fill in the blanks: missing; Leak: omission. It refers to making up for the defects and loopholes of things.