post gatherer

例句：

1. 1.The post gatherer is used to sort and categorize mail.
   邮政收集器用于分类和整理邮件。
2. 2. The post gatherer was designed to improve efficiency in the postal system.
   邮政收集器的设计目的是为了提高邮政系统的效率。
3. 3. The post gatherer is a crucial component of any efficient postal service.
   邮政收集器是任何高效邮政服务不可或缺的一部分。