diff --git a/docs/tieng-anh/tu-vung/tu-moi-thang-1-2021.md b/docs/tieng-anh/tu-vung/tu-moi-thang-1-2021.md
index 6520e80..03a9cd8 100644
--- a/docs/tieng-anh/tu-vung/tu-moi-thang-1-2021.md
+++ b/docs/tieng-anh/tu-vung/tu-moi-thang-1-2021.md
@@ -12,5 +12,10 @@ permalink: /tieng-anh/tu-vung/thang-1-2021
 * associate: to connect to something else in mind
 * distinguish: to notice or understand the different between two things
 * tailor: to make or prepare something following particular instruction
+* terrain: địa hình 
+* hooked: addicted
+* stunt: an exciting action that is dangerous
+* pouding: a heavy attack or defeat 
+
 ## Nguồn từ điển
 * [Cambridge Dictionary](https://dictionary.cambridge.org)
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