Acute exacerbation of chronic bronchitis

• 慢性支气管炎

Acute exacerbation of chronic bronchitis的用法和样例：

例句

1. My brother has chronic bronchitis.
   我的哥哥患有慢性支气管炎。
2. The productive cough of chronic bronchitis is often not regarded as abnormal.
   慢性支气管炎的咳痰往往不被认为异常。