铭肌镂骨

Pinyin: míng jī lòu gǔ Explanation: 形容感受极深，永记不忘。 Source: 北齐·颜之推《颜氏家训·序致》追思平昔之指，铭肌镂骨。” Thesaurus:  Bear in mind Lou Bone, Muscle moment ingrained, be engraved in the bones and imprinted on the heart, Ingrained Lou Heart, Carved hunger ingrained, imprint, Heart Journal ingrained, Juan bone bear in mind, No teeth retain, embedded in one's memory, through one's life-time retain, to remember (a favor) as long as one lives, to bear in mind always