diff --git a/docs-en/07-develop/03-insert-data/04-opentsdb-json.mdx b/docs-en/07-develop/03-insert-data/04-opentsdb-json.mdx
index 74267a344b56019b1a9004edb4621e280bf6473d..3a239440311c736159d6060db5e730c5e5665bcb 100644
--- a/docs-en/07-develop/03-insert-data/04-opentsdb-json.mdx
+++ b/docs-en/07-develop/03-insert-data/04-opentsdb-json.mdx
@@ -47,7 +47,7 @@ Please refer to [OpenTSDB HTTP API](http://opentsdb.net/docs/build/html/api_http
 
 :::note
 - In JSON protocol, strings will be converted to nchar type and numeric values will be converted to double type.
-- Only data in array format is accepted, array must be used even there is only one row.
+- Only data in array format is accepted and so an array must be used even if there is only one row.
 
 :::