diff --git a/standards/application/relay-reliability.md b/standards/application/relay-reliability.md
index 18c8de4..720e7af 100644
--- a/standards/application/relay-reliability.md
+++ b/standards/application/relay-reliability.md
@@ -106,7 +106,7 @@ For incoming messages, the processing flow can be like this:
 - subscribe to the interested pubsub and content topics
 - query the store node with the interested topics and time range for message hashes periodically
 - check if the message hash is exist in local database, if not, adding the message hash to a buffer, if yes, skip the message
-- fetch the missing messages in the buffer from store node
+- batch fetch the full messages corresponding to the missing message hashes in the buffer from the store node
 - process the messages necessarily
 - update the last fetch time for the interested topic