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.

《柯林斯英汉双解大词典》

基本上，用户可以用邮件发送图片到Posterous，然后自动发布到Twitter(和Facebook)，以及添加到他们的Posterous博客站点。

Essentially, users can email photos to Posterous, which are then automatically posted to Twitter (and Facebook) in addition to being added to their Posterous blog site.

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上图是通过电子邮件发送的名为大力士的巨犬的图片，据说它是世界上最大狗的吉尼斯纪录保持者。

Emailed image of a gargantuan dog named Hercules, purportedly the Guinness Record holder for World's Biggest dog. And it said.

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