Res nullius
[法] 无主物, 无主财产
🧩 词语组成解析
[计] 远程输入服务\\n[医] 网状内皮系统
🗣️ 情景例句
Good morning, Mr. Zhou. Take a seat, please. What can I do for you?
早上好，周先生。请坐。有什么事吗？
I meet the boy whose aunt is a secretary.
我遇到那个男孩的姑妈是秘书。
German is a more difficult language than English is.
德语比英语难学。