镌心铭骨 / 鐫心銘骨

juān​xīn​míng​gǔ

unforgettable

etched in one's bones and heart; an ever-present memory (often referring to resentment or deep gratitude)

这段镌心铭骨的往事，他一辈子也无法忘怀。

expression

created sense Mar 4, 2026, 02:25 AM