铭心刻骨 míngxīnkègǔ unforgettable Origin Definitions Defs Strokes Stroke Words Sentences Sents 铭心 銘心 míngxīn to imprint on one's mind to engrave in one's heart; to remember forever with gratitude or deep feeling刻骨 kègǔ deeply engraved deeply felt and unforgettable; ingrained or deep-rooted like something carved into the bones