do someone an injustice

• 使某人受屈；冤屈了某人；对不起某人；待某人不公道

do someone an injustice的用法和样例：

例句

1. But, imbued from her childhood with a brooding sense of wrong, and an inveterate hatred of a class, opportunity had developed her into a tigress.
   但是由于她从儿童时代起就深感含冤受屈，养成了根深蒂固的阶级仇恨，机会便把她发展成了一只母老虎。