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239页（223字）
前后受到敌人的攻打，例我们分两路包抄敌军，他们腹背受敌，只有投降一途。
We closed in on the enemy in a two pronged attack and they had to surrender because they were exposed to attacks from the front and rear．