Correct

乐此不疲

/ lè cǐ bù pí /
Strokes

Definition

to enjoy sth and never tire of it (idiom)

Example

Definition

always enjoy it; never get tired of it; never be bored with it

1
měitiān
每天
zāi
huā
  
yǎng
养鱼
  
,
乐此不疲
  

He took pleasure in growing flowers and breeding fish every day and never got tired.