acute exacerbation of chronic bronchitis 慢性支气管炎急性加重 ; 慢性支气管炎急性发作 ; 支气管炎急性发作 ; 支气管炎急性加重
acute and chronic bronchitis 急慢性支气管炎
acute exacerbationsof chronic bronchitis 慢性支气管炎急性发作
chronic bronchitis acute 慢性支气管炎急性发作
acute bronchitis-chronic bronchitis acutely exacerbating 急性支气管炎慢性支气管炎急性发作
acute stage of chronic bronchitis 慢性支气管炎急性发作期
acute attack of chronic bronchitis 慢性气管炎急性发作期
acute episode of chronic bronchitis 慢性支气管炎急性发作
chronic bronchitis acute stage 慢性支气管炎急性发作期
Chronic sinus infections, bronchiectasis (see bronchiectasis), and allergies also increase the risk of repeated episodes of acute bronchitis.
慢性鼻窦炎，支气管扩张，过敏也会增加急性支气管炎反复发作的风险。
Chronic sinus infections, bronchiectasis (see bronchiectasis and Atelectasis: bronchiectasis), and allergies also increase the risk of repeated episodes of acute bronchitis.
慢性鼻窦炎，支气管扩张，过敏也会增加急性支气管炎反复发作的风险。
Symptoms lasting up to 90 days are usually classified as acute bronchitis; symptoms lasting longer, sometimes for months or years, are usually classified as chronic bronchitis.
症状持续90天，往往列为急性支气管炎，症状持续更长几个月或几年，列为慢性支气管炎。
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