Gold from sand
It is a Chinese idiom. Pinyin is t OSH OSH D E J N, which means that the real gold is extracted from the sand by means of water extraction, which means removing impurities and extracting essence. It is also a metaphor of great effort and little effect.
explain
Get real gold from the sand by water separation. Remove impurities and extract essence. It is also a metaphor of great effort and little effect.
source
"Guanyinzi" 67: "I am like gold in the ash, not like gold in the sand. We can get gold by breaking the mine, by panning the sand, and by raising the ash for life, we can get no gold. " The case is deleted every other day and changed every other month. Li Yu in Qing Dynasty
Discrimination of words
Synonym: seeking gold from sand antonym: both mud and sand
usage
As an object or attribute
Gold from sand