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252页（257字）
比喻改恶从善，例他从前是个无恶不作的人，经过这次教训后决心痛改前非，放下屠刀，立地成佛，重新做人。
He had been a man who was up to no good，but after our recent examination and discussion of the problem，he made up his mind to turn a new leaf and start anew．