asthma
/ˈæsmə/noun
mass noun
- a respiratory condition marked by attacks of spasm in the bronchi of the lungs, causing difficulty in breathing. It is usually connected to allergic reaction or other forms of hypersensitivity.哮喘, 气喘（常与过敏有关）。
词源
late Middle English: from medieval Latin asma, from Greek asthma, from azein 'breathe hard'.