鼎铛玉石

1. • lit. to use a sacred tripod as cooking pot and jade as ordinary stone (idiom) fig. a waste of precious material
2. • casting pearls before swine

Character by character

• 鼎(dǐng)ancient cooking cauldron with two looped handles and three or four legs
• 铛(chēng)frying pan
• 玉(yù)jade
• 石(shí)surname Shi