Meaning of jī mì:
jī mì
机密
Noun
secret; classified (information)
Zhè fèn wénjiàn bāohán gāodù jīmì xìnxī.
这份文件包含高度机密信息。
This document contains highly secret information.
Zhèxiē wénjiàn shì gāodù jīmì de, wèijīng shòuquán bùdé chákàn.
这些文件是高度机密的,未经授权不得查看。
These documents are highly classified and unauthorized access is not allowed.

