bì mén zào chē
lit. to build a cart behind closed doors
to be overly subjective and disregard the outside world (idiom)
bì mén gēng
see 吃閉門羹|吃闭门羹[chi1 bi4 men2 geng1]
bì mén sī guò
shut oneself up and ponder over one's mistakes
bì mén mì jù
lit. lock the door and search for the right word (idiom); fig. the serious hard work of writing
bì mén sè dòu
to close doors and block openings (idiom); mounting a strict defense
xiǎng yǐ bì mén gēng
to close the door in one's face (idiom)
chī bì mén gēng
to be refused entrance (idiom)
to find the door closed