Central file
[计] 中央文件
🧩 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
But as exporters of a complete plant,
但是，作为成套设备出口商，
All things are difficult before they are easy.
凡事必先难后易。
you will realize that a modern navy is a good place to study noise.
你就会认识到现代海军是研究噪音的好地方。