Security file
[计] 保密文件
🧩 词语组成解析
file
[faɪl]
vt. 提出（离婚诉讼或其他讼案）;把…归档;用锉锉;发稿，寄给报社;
vi. 发送（报道给报社）;排成一行行走;提出申请;
n. 文件（夹）;档案;纵列;锉刀;
fil线+e → 用线穿成的→ 档案
🗣️ 情景例句
Three things?
三件事？
What are you going to do with the books?
你打算拿这些书怎么办？
When they had all made themselves comfortable, a stranger appeared.
当他们都已安排舒适时，一个陌生人出现了。