[铭心刻骨 / 銘心刻骨, míng xīn kè gǔㄇㄧㄥˊ ㄒㄧㄣ ㄎㄜˋ ㄍㄨˇ] engraved in one's heart and carved in one's bones (成语 saw); to remember a benefactor as long as one lives; undying gratitude#82113
[铭心镂骨 / 銘心鏤骨, míng xīn lòu gǔㄇㄧㄥˊ ㄒㄧㄣ ㄌㄡˋ ㄍㄨˇ] engraved in one's heart and carved in one's bones (成语 saw); to remember a benefactor as long as one lives; undying gratitude#911500