出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第11页（278字）
用功劳来抵罪，例他虽是绑匪之一，但因天性未泯，协助警方救出人质，才得以将功折罪，减轻刑期。
Although he is a member of the gang，he still has a conscience．He aided the police in releasing the hostages and by so doing， atoned for his crimes and thereby got a lighter sentence．