diff --git a/docs-2.0-zh/3.ngql-guide/7.general-query-statements/3.go.md b/docs-2.0-zh/3.ngql-guide/7.general-query-statements/3.go.md
index aeb98bb7a26..2dabc1323df 100644
--- a/docs-2.0-zh/3.ngql-guide/7.general-query-statements/3.go.md
+++ b/docs-2.0-zh/3.ngql-guide/7.general-query-statements/3.go.md
@@ -14,7 +14,7 @@ OVER <edge_type_list> [{REVERSELY | BIDIRECT}]
 [ WHERE <conditions> ]
 YIELD [DISTINCT] <return_list>
 [{ SAMPLE <sample_list> | <limit_by_list_clause> }]
-[| GROUP BY {<col_name> | expression> | <position>} YIELD <col_name>]
+[| GROUP BY {<col_name> | <expression> | <position>} YIELD <col_name>]
 [| ORDER BY <expression> [{ASC | DESC}]]
 [| LIMIT [<offset>,] <number_rows>];