乐此不疲 ChineseDict

乐 le4 樂

此 ci3 此

不 bu4 不

疲 pi2 疲

to enjoy sth and never tire of it (idiom)

Info

Wiktionary: 乐此不疲
MDBG: 乐此不疲
Examples with 乐此不疲 on Tatoeba
Percentile: 43 (higher is more common)
Tags: chengyu