A deep grievance that cannot be cleared
沉冤莫白
grievance procedures
(囚犯)冤情投诉程序
To avenge an old grievance
报复旧仇
wrong to disregard advice
不听劝告是错的
To have a grievance against sb
抱怨某人
grievance redress system
抱怨事件补救制度
wrong about my age
猜错了我的年龄
To file a plaint of grievance
禀诉冤屈
suffer a grievance that one has to keep to oneself
吃"哑巴亏"