diff --git a/docs-2.0/3.ngql-guide/16.subgraph-and-path/1.get-subgraph.md b/docs-2.0/3.ngql-guide/16.subgraph-and-path/1.get-subgraph.md
index 00f98d1513a..7d594c56b8f 100644
--- a/docs-2.0/3.ngql-guide/16.subgraph-and-path/1.get-subgraph.md
+++ b/docs-2.0/3.ngql-guide/16.subgraph-and-path/1.get-subgraph.md
@@ -7,7 +7,7 @@
 ```ngql
 GET SUBGRAPH [WITH PROP] [<step_count> STEPS] FROM {<vid>, <vid>...}
 [{IN | OUT | BOTH} <edge_type>, <edge_type>...]
-[YIELD [VERTICES AS <vertex_alias>] [,EDGES AS <edge_alias>]];
+YIELD [VERTICES AS <vertex_alias>] [, EDGES AS <edge_alias>];
 ```
 
 - `WITH PROP`：展示属性。不添加本参数则隐藏属性。
@@ -18,7 +18,7 @@ GET SUBGRAPH [WITH PROP] [<step_count> STEPS] FROM {<vid>, <vid>...}
 
 - `edge_type`：指定 Edge type。可以用`IN`、`OUT`和`BOTH`来指定起始点上该 Edge type 的方向。默认为`BOTH`。
 
-- `YIELD`：定义需要返回的输出。可以仅返回点或边。必须设置别名。不使用`YIELD`定义输出结果时，默认返回`_vertices`和`_edges`。
+- `YIELD`：定义需要返回的输出。可以仅返回点或边。必须设置别名。
 
 !!! note
 
diff --git a/docs-2.0/3.ngql-guide/7.general-query-statements/5.lookup.md b/docs-2.0/3.ngql-guide/7.general-query-statements/5.lookup.md
index c054574976f..135cba75a5e 100644
--- a/docs-2.0/3.ngql-guide/7.general-query-statements/5.lookup.md
+++ b/docs-2.0/3.ngql-guide/7.general-query-statements/5.lookup.md
@@ -24,7 +24,7 @@
 
   !!! compatibility "历史版本兼容性"
 
-        在此前的版本中，如果用`LOOKUP`语句基于指定属性查询时该属性没有索引，系统将报错，而不会使用其它索引。
+        在 2.5.0 版本之前，如果用`LOOKUP`语句基于指定属性查询时该属性没有索引，系统将报错，而不会使用其它索引。
 
 ## 前提条件
 
@@ -97,7 +97,6 @@ nebula> LOOKUP ON player \
 +-------------+
 | "player144" |
 | "player140" |
-| "player111" |
 +-------------+
 
 nebula> LOOKUP ON player \
@@ -107,10 +106,8 @@ nebula> LOOKUP ON player \
 +-------------------------+------------------------+
 | properties(VERTEX).name | properties(VERTEX).age |
 +-------------------------+------------------------+
-| "Blake Griffin"         | 30                     |
 | "Ben Simmons"           | 22                     |
 | "Blake Griffin"         | 30                     |
-| "Ben Simmons"           | 22                     |
 +-------------------------+------------------------+
 
 nebula> LOOKUP ON player \