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143页(220字)
比喻发自内心的话,例他对你说的话句句都是肺腑之言,你应当仔细考虑,不可掉以轻心。
What he has said to you are words from the bottom of his heart Do no treat what he said lightly but consider his words carefully.