diff --git a/sources/tech/20161130 Install Security Patches or Updates Automatically on CentOS and RHEL.md b/sources/tech/20161130 Install Security Patches or Updates Automatically on CentOS and RHEL.md
index 2685913003..896296f0f5 100644
--- a/sources/tech/20161130 Install Security Patches or Updates Automatically on CentOS and RHEL.md	
+++ b/sources/tech/20161130 Install Security Patches or Updates Automatically on CentOS and RHEL.md	
@@ -1,3 +1,4 @@
+ucasFL translating
 Install Security Patches or Updates Automatically on CentOS and RHEL
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