[uncountable] (BrE also post) the official system used for sending and delivering letters, packages, etc.邮政◆The cheque is in the mail.支票已邮寄。◆Please return our copy of the contract by mail.请将我方合同副本寄回。◆a mail distribution centre邮件分拣中心  ➡  airmail , voicemail ⨁express / first-class / second-class mail快递；一类／二类邮件 ⨁ internal / international mail国内／国际邮件 (BrE also post) letters, packages, etc. that are sent and delivered邮件；信件◆Has the mail arrived?邮件寄到了吗？◆We received a cheque from them in the mail today.我们今天收到他们邮寄来的支票。◆mail deliveries邮递◆an item/a piece of mail一份邮件◆The company has a licence to deliver bulk mail (= letters, etc. sent in large numbers by businesses).这家公司获许经营大宗邮件业务。⨁to deliver / handle mail投递／处理邮件 ⨁ to get / receive / send (out) mail得到／收到／发出邮件 ⨁ to answer / deal with / open / read your mail回复／处理／打开／阅读你的邮件 ⨁ incoming / outgoing mail接收／发送的邮件 ⨁ bulk / business / private mail大宗／商业／私人邮件 messages that are sent or received on a computer电子邮件◆Check regularly for new mail.定期查看新电子邮件。◆incoming/outgoing mail接收／发送的电子邮件  ➡  email certified mail direct mail electronic mail flame mail junk mail registered mail snail mail surface mail