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
It won't sound like a big deal,
这事听起来没啥严重，
Forbidden fruit is sweet.
禁果分外甜。
No, it isn't.
不，不是。