What is the idiom "dragon playing with pearls"

The idiom "Shuanglong plays with pearls"

Pinyin pronunciation

Two dragons stand opposite each other, playing with a treasure.

Origin of idioms

For example, the idiom wears a purple and gold crown with a bunch of hair embedded in it, and Qi Mei plays with two dragons to play with pearls and gold. (Cao Qingxue Qin's "Dream of Red Mansions" for the third time)

Two meanings: first, the dragon ball is often hidden in the dragon's mouth, and when appropriate, the dragon will spit it out; Second, the value of the Dragon Ball is very high. In the folk proverb, it is better to plant a thousand acres of citrus than to get a dragon ball.