Exaggeration
As a Chinese idiom, the Pinyin is Ju à NK à NGW à ngsh í, which means that it's impractical. From Duku magazine.
Idiom explanation
It's impractical to talk about drilling out of thin air.
The origin of Idioms
Song zengminxing's "Duku magazine" said: "we must not close our doors and close our eyes, and make false and false thoughts."
Idiom usage
As a predicate, attribute, etc
Exaggeration
get half the results with double the effort - lì bèi gōng bàn
cheer the heart and please the feelings - yí qíng lǐ xìng