没齿难忘 (沒齒難忘) méi chǐ nánwàng

méi chǐ nánwàng set phrase hard to forget even after one's teeth fall out; to remember a benefactor as long as one lives
Domain: Idiom 成语 , Subdomain: , Concept:
Notes: (CC-CEDICT '沒齒難忘')