閉門造車

lit. to shut oneself away and build a cart (idiom) / fig. to work on a project in isolation, without caring for outside realities

to close / to stop up / to shut / to obstruct

to close a door

gate / door / CL:扇[shan4] / gateway / doorway / CL:個|个[ge4] / opening / valve / switch / way to do something / knack / family / house / (religious) sect / school (of thought) / class / category / phylum or division (taxonomy) / classifier for large guns / classifier for lessons, subjects, branches of technology / (suffix) -gate (i.e. scandal; derived from Watergate)

to make / to build / to manufacture / to invent / to fabricate / to go to / party (in a lawsuit or legal agreement) / crop / classifier for crops

surname Che

car / vehicle / CL:輛|辆[liang4] / machine / to shape with a lathe / Kangxi radical 159

war chariot (archaic) / rook (in Chinese chess) / rook (in chess)