diff --git a/sources/tech/20210202 How I build and expand application development and testing.md b/sources/tech/20210202 How I build and expand application development and testing.md
index f01b3f4355..4c3673ebee 100644
--- a/sources/tech/20210202 How I build and expand application development and testing.md	
+++ b/sources/tech/20210202 How I build and expand application development and testing.md	
@@ -1,5 +1,5 @@
 [#]: collector: (lujun9972)
-[#]: translator: ( )
+[#]: translator: (toknow-gh)
 [#]: reviewer: ( )
 [#]: publisher: ( )
 [#]: url: ( )