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151页(230字)
使自己人心痛,使敌人高兴,例大敌当前,我们再因这些小事而争执不休,那就只会使亲痛仇快了。
To quarrel among ourselves over such minor matters when we are faced with a strong enemy only pains our friends and plcases cur enemies