Smtp
[计] 简易邮件传递协议
🗣️ 情景例句
Drop the gun, or I'll shoot.
扔掉枪， 不然我就开火了。
We must work out some plan to increase our sales.
我们必须制定一些计划来提高销售成绩。
Did you buy one, sir?
你买了票吗，先生？