diff --git a/docs/design_docs/retrieve_entity.md b/docs/design_docs/retrieve_entity.md
index 69468266fe..7d5fcb140a 100644
--- a/docs/design_docs/retrieve_entity.md
+++ b/docs/design_docs/retrieve_entity.md
@@ -2,7 +2,7 @@
 
 ## Background
 
-Milvus supports one entity containing multiple vector fields and multiple scalar fields.
+In Milvus, one entity encapsulates multiple vectors and scalars.
 
 When creating a collection, you can specify using the primary key generated automatically or the user-provided primary key. If the user sets to use the user-provided primary key, each entity inserted must contain the primary key field, otherwise, the insertion will fail. The primary keys will be returned after the insertion request is successful.