What is the synonym of "dust-covered pearl"?

Cast a bright pearl in the dark, cast a bright pearl in the dark.

1, pearl powder: [míng zhēng chén]. It means that bright pearls are covered with dust. It is a metaphor that precious things are covered up, or that precious things fall into the hands of people who don't know the goods. It is often used to describe that people's abilities or talents have not been brought into play. For example, Chen Gong in Romance of the Three Kingdoms has been assisting Lu Bu, but Lu Bu repeatedly ignored Chen Gong's advice, lost the opportunity to dominate the world, and was finally defeated and killed. Pearl Dust It can be said that Chen Gong didn't meet a good master, and he didn't give full play to his intelligence or talent.

2. antonym: abandon darkness and cast light.

3, usage: as an object, attribute; Go astray.

4. Make sentences: (1)? Pearls cast a shadow, indicating that precious things are given to people who don't know the goods. ? (2) Yuan Daxia, never give the "Great Rejuvenation Pill" to the magic door thief. This is a pearl that casts a shadow! (3) My younger brother is really a scholar, but it's a pity that the pearl casts a dark shadow! ? (4) Even if we are not in a hurry to retaliate against the Tatars, there is no need to get something for nothing. That clock is genuine, and the hard work of the two younger brothers has been given to these tartars. It's really a pearl casting a dark shadow. ? (5) With Jia Xu's talent, under the premise of clearly seeing that Zhang Xiu has no great future, he still resolutely committed himself to Zhang Xiu's account, cast a hidden pearl, and swam in the ravine, which can quite guess Jia Xu's real intention. ? (6) Precious? This thing cannot be described as precious. It is definitely a rare treasure that can be met but not sought. What a pity that such a good thing should be kept in the dark! What a pity!

5. Source: Lu Xun's "South Room and North General Mobilization for Forgetting": "But on the one hand, I am very sorry for my two books; Falling into the hands of the arresting house is really a pearl cast a dark shadow. "