diff --git a/documentation/webdocs/markdowndocs/Connector.md b/documentation/webdocs/markdowndocs/Connector.md
index a642869b60c4906e49a573c398a0eb0f166635d0..c4a08ca88ee987947a86426fa0aa5cd302fd938a 100644
--- a/documentation/webdocs/markdowndocs/Connector.md
+++ b/documentation/webdocs/markdowndocs/Connector.md
@@ -211,10 +211,10 @@ Since the native language of TDengine is C, the necessary TDengine library shoul
 > Note: Please make sure that TDengine Windows client has been installed if developing on Windows.
 
 Since TDengine is time-series database, there are still some differences compared with traditional databases in using TDengine JDBC driver: 
-* TDengine doesn't allow to delete/modify single record, and thus JDBC driver also has no such method. 
+* TDengine doesn't allow to delete/modify a single record, and thus JDBC driver also has no such method. 
 * No support for transaction
 * No support for union between tables
-* No support for nested query)，`There is at most one open ResultSet for each Connection. Thus, TSDB JDBC Driver will close current ResultSet if it is not closed and a new query begins`.
+* No support for nested query，`There is at most one open ResultSet for each Connection. Thus, TSDB JDBC Driver will close current ResultSet if it is not closed and a new query begins`.
 
 ## Version list of TAOS-JDBCDriver and required TDengine and JDK