伸冤报仇shēn yuān bào chóu

redress an injustice and avenge oneself on sb; revenge a wrong
❍ 我们多少学生无辜地受了象我这样的重伤，为什么教育部不去声讨那些汉奸卖国贼？不去为他自己的学生～？却反而诬赖我们堂堂正正的行为是越轨行动？(杨沫《青春之歌》602)Why doesn’t the Ministry of Education denounce those traitors for the uncalled-for injuries done to so many students like myself? Why doesn’t it protect and avenge its own students instead of slandering our fine patriotic action as something reprehensible?

伸冤报仇shēnyuān-bàochóu

〔并列〕 报冤仇，解除怨恨。姚雪垠《虎吼雷鸣马萧萧》：“咱们严惩土豪大户，为百姓～。”
※ 伸，指用力气，不同于动口陈述的“申”。
【近义】报仇雪恨
〖反义〗冤沉海底