咽炎一般无痰；喉炎少痰；气管和支气管炎症多痰；肺炎的痰很难咳出来，影响换气，有憋闷的感觉（新冠症状）

来源: fuz 于 2020-12-15 12:25:29 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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