柯林斯词典asthma /ˈæsmə/ 1. N-UNCOUNT Asthma is a lung condition that causes difficulty in breathing. 哮喘 返回 asthma剑桥词典a medical condition that makes breathing difficult by causing the air passages to become narrow or blocked 气喘，哮喘 an asthma sufferer 哮喘病患者 an asthma attack 哮喘病发作 返回 asthma