diff --git a/Group-Aggregation-Query.md b/Group-Aggregation-Query.md
index 86cef92..7c91cce 100644
--- a/Group-Aggregation-Query.md
+++ b/Group-Aggregation-Query.md
@@ -46,6 +46,16 @@ var list = fsql.Select<Topic>()
 
 > To find the aggregate value without grouping, please use `ToAggregate` instead of `ToList`
 
+```csharp
+var list = fsql.Select<Topic>()
+    .ToAggregate(a => new 
+    {
+        cou1 = a.Count(), 
+        arg1 = a.Avg(a.Value.Clicks), 
+        arg2 = a.Sum(a.Value.Clicks > 100 ? 1 : 0)
+    });
+```
+
 ## Navigation Property Grouping
 
 If `Topic` has the navigation property `Category`, and `Category` has the navigation property `Area`, the navigation property grouping code is as follows:
diff --git a/分组聚合查询.md b/分组聚合查询.md
index 9e029c1..bc8fbec 100644
--- a/分组聚合查询.md
+++ b/分组聚合查询.md
@@ -45,6 +45,16 @@ var list = fsql.Select<Topic>()
 
 > 不分组求聚合值，请使用 ToAggregate 替代 ToList
 
+```csharp
+var list = fsql.Select<Topic>()
+    .ToAggregate(a => new 
+    {
+        cou1 = a.Count(), 
+        arg1 = a.Avg(a.Value.Clicks), 
+        arg2 = a.Sum(a.Value.Clicks > 100 ? 1 : 0)
+    });
+```
+
 ## 导航属性分组
 
 假如 Topic 有导航属性 Category，Category 又有导航属性 Area，导航属性分组代码如下：