diff --git a/docs-2.0/3.ngql-guide/1.nGQL-overview/keywords-and-reserved-words.md b/docs-2.0/3.ngql-guide/1.nGQL-overview/keywords-and-reserved-words.md
index d79f294d0ac..c018172f5ae 100644
--- a/docs-2.0/3.ngql-guide/1.nGQL-overview/keywords-and-reserved-words.md
+++ b/docs-2.0/3.ngql-guide/1.nGQL-overview/keywords-and-reserved-words.md
@@ -1,8 +1,8 @@
 # Keywords
 
-Keywords have significance in nGQL. It can be classified into reserved keywords and non-reserved keywords. It is not recommend to use keywords in schema.
+Keywords in nGQL are words with particular meanings, such as `CREATE` and `TAG` in the `CREATE TAG` statement. Keywords that require special processing to be used as identifiers are referred to as `reserved keywords`, while the part of keywords that can be used directly as identifiers are called `non-reserved keywords`."
 
-If you must use keywords in schema:
+It is not recommend to use keywords in schema. If you must use keywords in schema:
 
 - Non-reserved keywords can be used as identifiers without quotes if they are all in lowercase. However, if a non-reserved keyword contains any uppercase letters when used as an identifier, it must be enclosed in backticks (\`), for example, \`Comment\`.
 
@@ -137,6 +137,21 @@ XOR
 YIELD
 ```
 
+{{ent.ent_begin}}
+The following reserved keywords are only available in {{nebula.release}} enterprise version.
+
+```
+JOIN
+LEFT
+RIGHT
+INNER
+OUTER
+SEMI
+ANTI
+```
+{{ent.ent_end}}
+
+
 ## Non-reserved keywords
 
 ```ngql
diff --git a/docs-2.0/3.ngql-guide/16.subgraph-and-path/2.find-path.md b/docs-2.0/3.ngql-guide/16.subgraph-and-path/2.find-path.md
index e33e8eafdb2..b67ae6de784 100644
--- a/docs-2.0/3.ngql-guide/16.subgraph-and-path/2.find-path.md
+++ b/docs-2.0/3.ngql-guide/16.subgraph-and-path/2.find-path.md
@@ -21,7 +21,7 @@ YIELD path as <alias>
 
 - `SHORTEST` finds all the shortest path.
 
-- `SINGLE SHORTEST` finds the all shortest path. If there are multiple shortest paths, only one path is returned.
+- `SINGLE SHORTEST` finds the all shortest path. If there are multiple shortest paths, only one path is returned. The `SINGLE SHORTEST` is for Enterprise Edition only.
 
 - `ALL` finds all the paths.
 
@@ -96,6 +96,7 @@ nebula> FIND SHORTEST PATH FROM "player100", "player130" TO "player132", "player
 +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 ```
 
+{{ent.ent_begin}}
 ```ngql
 nebula> FIND SINGLE SHORTEST PATH FROM "player100", "player130" TO "player132", "player133" OVER * BIDIRECT UPTO 18 STEPS YIELD path as p;
 +-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
@@ -108,6 +109,11 @@ nebula> FIND SINGLE SHORTEST PATH FROM "player100", "player130" TO "player132",
 +-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 ```
 
+!!! enterpriseonly
+  
+    The `SINGLE SHORTEST` feature is for Enterprise Edition only.
+{{ent.ent_end}}
+
 ```ngql
 nebula> FIND ALL PATH FROM "player100" TO "team204" OVER * WHERE follow.degree is EMPTY or follow.degree >=0 YIELD path AS p;
 +------------------------------------------------------------------------------+
diff --git a/mkdocs.yml b/mkdocs.yml
index 8686b45e82f..1c13208ac39 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -266,8 +266,8 @@ extra:
     azureLatestRelease: 3.1.0 # The latest doc version that supports Azure Cloud
     aliyunLatestRelease: 3.1.0 # The latest doc version that supports Alibaba Cloud
   ent:
-    ent_begin: <!-- -->        # change to "<!-- -->" when releasing core-ent
-    ent_end: <!-- -->             # change to "<!-- -->" when releasing core-ent
+    ent_begin: <!--         # change to "<!-- -->" when releasing core-ent
+    ent_end:  -->             # change to "<!-- -->" when releasing core-ent
 
 nav:
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