Backdoor file
[计] 秘密文件, 非法途径文件
🧩 词语组成解析
a. 秘密的
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
Oh, congratulations! That's nice.
啊， 恭喜你们！ 太好了。
I must play my spare time well, or I end up doing nothing.
我必须善于利用空闲的时间，否则生命将会在无所事事中告终。
He used to sleep during the day and work at night, quite unaware of the fact that he had become the ghost of Endley.
白天睡觉，夜里出来干活，一点不知道自己已成了恩得利家场的活鬼。