# 永久组

永久群组由EndNote自动生成，不能重命名和删除，包括以下三个：

* **All References：**所有文献组显示所有文献，如果选择显示该组部分文献，该组名称会变成 Showing References，右侧显示该组下有多少文献。
* **Unfiled：**未分类组，显示的是没有自定义分类的文献。右击该组选择 Exclude Smart Groups 或 Include Smart Groups 可以排除或者包含智能组文献。
* **Trash：**垃圾箱，该组包含暂时删除的文献，可以随时恢复到数据库中。但是右击选择清空垃圾箱(Empty Tras)后文献就彻底删除，不能恢复。


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