Unit development file
[计] 单位研制文件
🧩 词语组成解析
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
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
Thanks. Could you point me in the right direction?
谢谢。您能告诉我要往哪里走吗？
March comes in like a lion and goes out like a lamb.
三月来如雄狮，去如绵羊。
I had all the usual symptoms of someone giving up smoking: a bad temper and an enormous appetite.
脾气暴躁和食欲旺盛。