| 词源 |
MI5, MI6. Frequently encountered in spy novels, these are official British intelligence organizations. MI5 is supposed to protect domestic military and political secrets, while MI6 is re- sponsible for discovering foreign military and political secrets. Both services work with Scotland Yard’s Special Branch. The letters MI stand for M(ilitary) I(ntelligence), and the numbers stand for Section 5 or Section 6. |