没齿难忘

Explanation: Life can not forget 　　Usage: Partial official; as predicate; with compliment 　　Source: Ming Anonymous "four Yin Kee monk": "practice reported that Germany, generous from my blog, will never forget." 　　Examples: Battlement sudden break up more pity, when newspaper title ring knot grass, ~ flu two days. ★ Ming Yang Sheng soft "Fan Zhang Yuhuan do not mind Gao" 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 bear in mind always, Mingjilougu