diff --git a/sources/tech/20170410 Writing a Time Series Database from Scratch.md b/sources/tech/20170410 Writing a Time Series Database from Scratch.md
index a7f8289b63..e73ffa6777 100644
--- a/sources/tech/20170410 Writing a Time Series Database from Scratch.md	
+++ b/sources/tech/20170410 Writing a Time Series Database from Scratch.md	
@@ -1,3 +1,6 @@
+cielong translating
+----
+
 Writing a Time Series Database from Scratch
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