diff --git a/sources/tech/20170217 Understanding the difference between sudo and su.md b/sources/tech/20170217 Understanding the difference between sudo and su.md
index bebe069551..c62dd17bc0 100644
--- a/sources/tech/20170217 Understanding the difference between sudo and su.md	
+++ b/sources/tech/20170217 Understanding the difference between sudo and su.md	
@@ -1,3 +1,4 @@
+申请翻译
 Understanding the difference between sudo and su
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