lit. to play the lute to a cow (idiom) / fig. offering a treat to an unappreciative audience / to cast pearls before swine / caviar to the general / to preach to deaf ears / to talk over sb's head
鼎铛玉石
dǐng chēng yù shí
lit. to use a sacred tripod as cooking pot and jade as ordinary stone (idiom) / fig. a waste of precious material / casting pearls before swine
明珠暗投
míng zhū àn tóu
to cast pearls before swine (idiom) / not to get proper recognition for one's talents
zhū
