Undocumented
a. 无正式文件的, 无事实证明的
🗣️ 情景例句
She hasn't been employed for six months now.
她已经失业半年了。
She has a particular interest in painting.
她特别爱好绘画。
Eric had been the eldest son of the family, very much older than his two brothers.
埃里克是这家长子。