It's very simple
Chinese idiom, Pinyin is j ī Ji ǎ NCH ō NGD 庸 ng, which means the stack of books, fill the room, describe the article is very much. It comes from Ode to Wannian Baoli.
The origin of Idioms
Fang Bao's Ode to Wannian Baoli in the Qing Dynasty said, "it's only my emperor who has made great achievements in virtue and good governance. Although he has accumulated a lot, he can't exhaust himself."
Idiom usage
As a predicate or attribute; used in figurative sentences.
It's very simple
Disharmony of water and vegetable - shuǐ cài bù jiāo
close the gate and shut out visitors - dù mén xiè kè