銘ㄇㄧㄥˊmíng心ㄒㄧㄣxīn鏤ㄌㄡˋlòu骨ㄍㄨˇgǔ

  1. 比喻感激難忘。唐·柳宗元〈謝除柳州刺史表〉：「銘心鏤骨，無報上天。」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

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