diff --git a/Replication.md b/Replication.md
index bc1bd60..f1a2d3d 100644
--- a/Replication.md
+++ b/Replication.md
@@ -1,5 +1,5 @@
-SeaweedFS blob storage can support replication, not implemented on file level, but on volume level.
-File level replication is in filer layer.
+SeaweedFS blob storage layer can support replication, not implemented on file level, but on volume level.
+(File level replication is in filer layer.)
 
 ## How to use