机密文件

secret document

(bound form) machine; mechanism / (bound form) aircraft / (bound form) an opportunity / (bound form) crucial point; pivot / (bound form) quick-witted; flexible / (bound form) organic

secret / classified (information)

secret / confidential / close / thick / dense

coded text / cypher

document / file / CL:份[fen4]

language / culture / writing / formal / literary / gentle / (old) classifier for coins / Kangxi radical 67

item / component / classifier for events, things, clothes etc