銘心鏤骨
simp铭心镂骨ming5 sam1 lau6 gwat1míng xīn lòu gǔ
English
- engraved in one's heart and carved in one's bones (idiom); to remember a benefactor as long as one lives
- undying gratitude
Sources: cc-cedict, rime-cantonese
Sources: cc-cedict, rime-cantonese