diff --git a/sources/tech/20170529 Linux comm command tutorial for beginners.md b/sources/tech/20170529 Linux comm command tutorial for beginners.md
index 10aee6cb2a..0a8a6fd6c2 100644
--- a/sources/tech/20170529 Linux comm command tutorial for beginners.md	
+++ b/sources/tech/20170529 Linux comm command tutorial for beginners.md	
@@ -1,3 +1,4 @@
+ucasFL translating
 Linux comm command tutorial for beginners (5 examples)
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diff --git a/sources/tech/20170531 Get started with machine learning using Python.md b/sources/tech/20170531 Get started with machine learning using Python.md
index ba6a3cd008..c280a88a74 100644
--- a/sources/tech/20170531 Get started with machine learning using Python.md	
+++ b/sources/tech/20170531 Get started with machine learning using Python.md	
@@ -1,3 +1,4 @@
+ucasFL translating
 Get started with machine learning using Python
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diff --git a/sources/tech/20170602 MyCLI - A MySQLMariaDB Client with Auto-completion and Syntax-highlighting.md b/sources/tech/20170602 MyCLI - A MySQLMariaDB Client with Auto-completion and Syntax-highlighting.md
index be67f7ed86..fa4e2dbe39 100644
--- a/sources/tech/20170602 MyCLI - A MySQLMariaDB Client with Auto-completion and Syntax-highlighting.md	
+++ b/sources/tech/20170602 MyCLI - A MySQLMariaDB Client with Auto-completion and Syntax-highlighting.md	
@@ -1,3 +1,4 @@
+ucasFL translating
 MyCLI – A MySQL/MariaDB Client with Auto-completion and Syntax-highlighting
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