Undocumented
a. 无正式文件的, 无事实证明的
🗣️ 情景例句
No, I think this one belongs in the people-at-work section.
不 ，我认为它属于工作中的人们的那一区。
Stop bossing me around!
别管闲事！
Which would you like, a cup of tea or a glass of milk?
你想来点什么，一杯茶还是一杯牛奶？