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259页(221字)
像铁和石头一样硬的心肠,比喻人毫无感情或性情刚强不为外物所感,例看到火灾后的惨状,就是铁石心肠的人,也会伤心流泪。
Even a person with a heart of stone will feel tears in his eyes when he sees the aftereffects of a fire disaster.