The meaning of.

Idiom-revenge: revenge: a long-term failure or difficulty.

Unfair defense.

Zhao Xue: Clear (grievance)

It adds up to: no revenge for a long time

Or you can clear the unforgivable grievances.

The word "rehabilitation" comes from Dou E's injustice. The word "rehabilitate" means to sue a huge injustice through the snow in June.

As for "settling grievances", it is not an idiom at all, but the idiom "settling grievances" is mispronounced!