Question

對牛彈琴 deui3 ngau4 taan4 kam4

Accepted Answer

to play the lute to a cow (成语 saw); fig. offering a treat to a unappreciative audience/to cast pearls before swine/caviar to the general/to preach to deaf ears/to talk over sb's head y

Expression	對牛彈琴
Meaning	to play the lute to a cow (成语 saw); fig. offering a treat to a unappreciative audience/to cast pearls before swine/caviar to the general/to preach to deaf ears/to talk over sb's head
Reading	deui3 ngau4 taan4 kam4
Recall	y

對牛彈琴 Play Lute Cow 成语 Fig Offering Treat