Idf
abbr. 综合资料文件（intergrated Data File）
🗣️ 情景例句
Great. What's happening with you these days?
非常好。你最近几天怎么样？
I have received a letter from my cousin.
我收到了我表兄的信。
The episode could reasonably serve as a unique epic of royal espionage!
这一幕历史可以说是王室谍报活动中最精彩的篇章。