闢室密談

to discuss behind closed doors

to open (a door) / to open up (for development) / to dispel / to refute / to repudiate

lit. to open a room / fig. to settle in a quiet room / behind closed doors

surname Shi

room / work unit / grave / scabbard / family or clan / one of the 28 constellations of Chinese astronomy

secret / confidential / close / thick / dense

commune / private discussion

surname Tan

to speak / to talk / to converse / to chat / to discuss