Dianion
二价阴离子
🗣️ 情景例句
Let's talk business.
我们来谈谈正经事。
Set a thief to catch a thief.
以毒攻毒。
Would you please read the draft contract and make your comments about the terms?
请仔细阅读合同草案，并就合同各条款提出你的看法好吗？）