Undocumented
a. 无正式文件的, 无事实证明的
🗣️ 情景例句
I have received the secretarial training for six months.
我曾接受过6个月的秘书训练。
I'm glad that we've settled the price.
很高兴我们就价格达成了共识。
She likes bread and milk a little, but she doesn't like eggs at all.
她吃点面包，喝些牛奶还行，但是不喜欢吃鸡蛋。