vt.
为(受辱、受害、含冤、冤屈等)进行报复；为…雪耻：
to
avenge one’s wrongs on the enemy
为自己受冤屈向敌人报 仇
to avenge a grave insult
为自己受莫大的侮辱进行报复
替(受害者)报仇：
He avenged his brother.
他为兄弟报了仇。
to avenge a murder by bringing the criminal to trial
审判罪犯为被害者报仇
[avenge oneself 或用于被动语态] 报复；报仇