Strice confidential
[经] 绝密, 绝密件
🧩 词语组成解析
🗣️ 情景例句
Did you pay for that?
你付钱了没有？
The two parties involved in a contract have the obligation to execute the contract.
合同双方有义务履行合同。
The system has worked so well, that it has been adopted in other countries too.
由于这种制度行之有效，已被其他国家采纳。