diff --git a/_Sidebar.md b/_Sidebar.md
index e120bd6..7307028 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -29,7 +29,6 @@
     * [联级删除](%E8%81%94%E7%BA%A7%E5%88%A0%E9%99%A4) [Cascade Deletion](Cascade-Deletion)
     * [工作单元管理器](DI-UnitOfWorkManager) ✨
     * [聚合根（实验室）](%E8%81%9A%E5%90%88%E6%A0%B9%EF%BC%88%E5%AE%9E%E9%AA%8C%E5%AE%A4%EF%BC%89)
-* [DbContext](DbContext)
 * [CodeFirst](CodeFirst)
     * [实体特性✨](%e5%ae%9e%e4%bd%93%e7%89%b9%e6%80%a7)
     * [FluentApi](FluentApi)