Occasionally, you want to move messages from one mailbox to another.
有时候，您希望将消息从一个邮箱移到另一个邮箱。
In general, it is easier to set up a single mailbox that you can use to hold the spam and another to hold the ham.
通常，比较简单的做法是设置一个单独的邮箱，以便使用一个邮箱来保存垃圾邮件，而使用另一个邮箱来保存非垃圾邮件。
Each process is provided with a 'mailbox' into which another process can send messages.
每个进程都将获得一个“邮箱”，其他进程可向此邮箱发送消息。
Each process is provided with a 'mailbox' into which another process can send messages.
每个进程都将获得一个“邮箱”，其他进程可向此邮箱发送消息。
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