Mi5
abbr. 军情五处（Military Intelligence Security Service, 英国负责国内反间谍、反恐怖的情报部门）
📖 牛津释义
MI5
abbr
缩写 = (Brit) (former name for the) National Security Division of Military Intelligence （旧名）英国安全局（陆军情报局5处）.
🗣️ 情景例句
One week after I have submitted my resignation paper.
在我提交辞职信一星期后吧！
She passed her competitive examination not without difficulty.
她好不容易才通过了答辩考试。
It's dangerous!
危险！