Closed door
Chinese idiom, Pinyin is B ì K ǒ uh é sh é, which means to build a car behind closed doors, to go out of one's way, and to compare with each other. From Hou Ji Lu.
The origin of Idioms
The eighth volume of Hou Ji Lu written by Zhao lingwan of Song Dynasty: "Valley cloud: Dongpo ink opera, water flowing and stone moistening, and Yu cursive samadhi, so-called closed door."
Idiom usage
As a predicate or attributive.
Closed door
A man without faith does not know what he can do - rén ér wú xìn,bù zhī qí kě