Jīngguò duō nián nǔlì, tā zhōngyú xuěhèn chénggōng.
After years of effort, he finally succeeded in wiping out his grievance.
Tips
memory
雪 ordinarily means snow, but it also means to wash away or to wipe clean. 雪恨 means to wash away hatred — to cleanse oneself of a grudge through retaliation or justice.