英语语法分析

The message contains Unicode characters and has been sent as a binary attachment.

这条信息含有统一码字符，已经以二进制附件形式发送。

《柯林斯英汉双解大词典》

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.

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。

《柯林斯英汉双解大词典》

For simplicity, use only one attachment for our test.

为方便起见，我们的测试仅使用一个附件。