File extension specification
[计] 文件附加说明表
🧩 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
I heard the professor of that class is very good.
我听说那个班的教授很好。
Industry is fortune's right hand, and frugality her left.
勤勉是幸运的右手，节约是幸运的左手。
It's quite a nice horse! But please don't play with my chalk.
这匹马相当好看！但请不要玩我的粉笔。