当发送电子邮件时，你还可以把一份文件作为附件发送，该文件可以是图片、程序、或声音文件等。

When you send an e-mail you can also send a file as an attachment and that file can be a graphic, a program, a sound or whatever.

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根据联系人信息中所包含的内容不同，你也可能有例如“显示地图”(Show map)、“呼叫”(Dial number)及“发送电子邮件”(send Email)等选项。

Depending on the information contained in the contact, you may also have options such as Show map, Dial number, and send Email.

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邮件交换器记录由诸如sendmail和postfix等邮件传输代理在查找电子邮件发送目的地时使用。

The mail exchanger records are used by mail transport agents like sendmail and postfix when looking up where to send E-mail.

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