diff --git a/docs/developer_guides/how-guarantee-ts-works.md b/docs/developer_guides/how-guarantee-ts-works.md
index bee8c521b4..dfd43c24a5 100644
--- a/docs/developer_guides/how-guarantee-ts-works.md
+++ b/docs/developer_guides/how-guarantee-ts-works.md
@@ -2,7 +2,7 @@
 
 [中文文档](./how-guarantee-ts-works-cn.md)
 
-Users and developers may feel confused by the so many parameters in the search requests, especially for those developers
+Users and developers may feel confused by so many parameters in the search requests, especially for those developers
 who develop the SDK client for Milvus.
 
 This document will explain a special parameter in the search request-"Guarantee Timestamp", hereinafter referred to as