Boundary relation
[化] 边值关系
🧩 词语组成解析
🗣️ 情景例句
I'm sorry, Marilyn.
对不起 ，Marilyn。
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。
You can print the telephone number of your information service in the newspaper.
你可以把你的问讯服务的电话号码登在报纸上。