Undue enrichment
[法] 不当得利
🧩 词语组成解析
n. 丰富, 肥沃\\n[化] 富集
🗣️ 情景例句
Sure.
当然可以。
Do you ever study English on Sunday?
你曾经在星期日学英文吗？
She walked slowly into the hall and at once noticed that all the room doors were open,
她慢慢地走进前厅，立即发现所有的房门都敞开着，