Breathing Easier: How to Control Asthma

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Vocabulary:

asthma ['æsmə]  respiratory disorder characterized by wheezing; usually of allergic origin ( hen suyễn )

 

chronic ['krɒnɪk]  adj.

being long-lasting and recurrent or characterized by long suffering ( mãn tính )

 

impurity [ɪm'pjʊrətɪ /-'pjʊər-] noun

worthless or dangerous material that should be removed ( tạp chất )

 

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