磨破嘴皮子 mó pò zuǐ pí zǐ

mó pò zuǐ pí zǐ phrase to wear out one's lips; to talk until one is blue in the face; to repeat again and again
Domain: Proverb 谚语 , Subdomain: , Concept:
Notes: (CC-CEDICT '磨破嘴皮子')