mail car[邮] 邮车;[邮] 邮政车;邮政汽车;邮车
registered mail挂号信;[邮] 挂号邮件;给据邮件;挂号邮寄
Mail Gateway[计] [邮] 邮件网关;邮件闸道器;邮件的网间连接器;邮件网关
mail sorter信件分类装置;邮件分拣员
mail fraud邮政诈骗;邮件欺诈;邮件诈骗
foreign mail外国邮件;国外邮件;番邦邮件;异邦邮件
mail liner[邮] [船] 定期邮船;邮船;按期邮船;详细翻译
surface mail平邮;平信;普通邮件;陆地邮寄
black mail勒索;敲诈;告密;胁迫
E-mail has become one of the most common manners in modern communication.
电子邮件已经成为现代人际交流的一种最常见的方式。
参考来源 - 垃圾邮件行为模式识别与过滤方法研究N-SING（单数型名词） The mail is the public service or system by which letters and packages are collected and delivered. 邮政 ['the' N, also 'by' N]
Your cheque is in the mail.
你的支票在邮寄中。
N-UNCOUNT（不可数名词） You can refer to letters and packages that are delivered to you as mail. 邮件 [also 'the' N]
There was no mail except the usual junk addressed to the occupant.
除了寄给住户的常见的垃圾邮件之外，没有其他邮件。
N-UNCOUNT（不可数名词） a type of flexible armour consisting of riveted metal rings or links 锁子甲
N-UNCOUNT（不可数名词） the hard protective shell of such animals as the turtle and lobster (龟、龙虾等的)保护壳
V-T（及物动词） If you mail a letter or package to someone, you send it to them by putting it in a postbox or taking it to a post office. 邮寄 [美国英语]
V-T（及物动词） To mail a message to someone means to send it to them by means of e-mail or a computer network. 发送 (电子邮件)
N-COUNT（可数名词） Mail is also a noun. 电子邮件
If you have any problems then send me a mail.
如有任何问题就给我发邮件。
（） → see also airmail, electronic mail, e-mail, junk mail, mailing, surface mail