銘ㄇㄧㄥˊmíng心ㄒㄧㄣxīn刻ㄎㄜˋkè骨ㄍㄨˇgǔ

  1. 形容記憶極深，永遠難忘。《紅樓夢·第三二回》：「所悲者：父母早逝，雖有銘心刻骨之言，無人為我主張。」也作「刻骨銘心」。

英engraved in one's heart and carved in one's bones (idiom)​; to remember a benefactor as long as one lives, undying gratitude