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262页(271字)
能够治病的药味苦难吃,比喻善意的批评难听进去,亦即忠言逆耳,例"良药苦口利于病,忠言逆耳利于行",父亲的话虽然严厉,但对你是大有裨益的。
Remember"bitter medicine cures one's sickness while unpalatable advice benefits one's conduct."Your father's words are harsh but they are what you need.