Thêm từ vựng tiếng Anh

docs/tieng-anh/tu-vung/cum-dong-tu.md

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+---
+layout: default
+title: Cụm động từ
+parent: Từ vựng
+grand_parent: Tiếng Anh
+permalink: /tieng-anh/tu-vung/cum-dong-tu
+---
+# Cụm động từ
+* wrap up: 
+  * to complete something successfully
+  * to cover or surround something in paper, cloth,...
+* take off: 
+  * start to fly
+  * suddenly become successfully or popular 
+* set off: to start on a trip
+* run by: to tell or explain something to someone to see whether it's good idea or not
+* slack off: to work less hard
+* fill in (for): to do someone's work temporarily
+* burn out: become too tired or unable to work because of working too hard
+* take on: to fight or compete against someone or something
+* take over: to take control of something

docs/tieng-anh/tu-vung/thanh-ngu.md

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+---
+layout: default
+title: Thành ngữ
+parent: Từ vựng
+grand_parent: Tiếng Anh
+permalink: /tieng-anh/tu-vung/thanh-ngu
+---
+# Thành ngữ
+* make a mountain out of a molehill: put to much focus on a minor issue
+* live something down: to forget about an embarrassing situation
+* to outdo yourself: to do better than normally
+* to be out of question: to be imposssible to accomplish
+* to be back in the saddle: to return to normal activities, especially after an illness or injury
+* to be a piece of cake: to be very easy

docs/tieng-anh/tu-vung/tu-moi-thang-1-2021.md

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+---
+layout: default
+title: Từ mới tháng 1 năm 2021
+parent: Từ vựng
+grand_parent: Tiếng Anh
+permalink: /tieng-anh/tu-vung/thang-1-2021
+---
+# Từ mới tháng 1 - 2021
+* incentive: something that encourages a person to do something
+* forbearance: sự nhẫn nại
+* mercy: lòng nhân từ 
+* 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
+## Nguồn từ điển
+* [Cambridge Dictionary](https://dictionary.cambridge.org)

docs/tieng-anh/tu-vung/tu-vung.md

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+---
+layout: default
+title: Từ vựng
+has_children: true
+permalink: /tieng-anh/tu-vung
+parent: Tiếng Anh
+---
+# Từ vựng