Conclusion cough variant asthma and postnasal drip syndrome are among the most important causes of chronic cough 结论咳嗽变异型哮喘和后鼻漏综合征是慢性咳嗽的常见病因。
2.
Every year , nearly 37 million americans suffer from the sinus pressure , nasal congestion , cough and postnasal drip that accompany sinusitis 每年有近三千七百万美国人饱受鼻窦压迫、鼻腔阻塞、咳嗽和后鼻滴涕之苦，这些症状均是伴随着鼻窦炎而来。
3.
Persistent bad breath may be a sign of periodontal disease , an abscessed tooth , chronic sinusitis , postnasal drip , chronic bronchitis , certain kinds of oesophageal problems , and other 持久的口腔异味可能是某种疾病的征兆，如牙龈病牙床脓肿慢性鼻窦炎后鼻漏慢性支气管炎或某些食道疾病及其他健康问题。
4.
Persistent bad breath may be a sign of periodontal disease , an abscessed tooth , chronic sinusitis , postnasal drip , chronic bronchitis , certain kinds of oesophageal problems , and other health conditions 持久的口腔异味可能是某种疾病的征兆，如牙龈病牙床脓肿慢性鼻窦炎后鼻漏慢性支气管炎或某些食道疾病及其他健康问题。
5.
Persistent bad breath may be a sign of periodontal disease , an abscessed tooth , chronic sinusitis , postnasal drip , chronic bronchitis , certain kinds of oesophageal problems , and other health conditions 持久的口腔异味可能是某种疾病的征兆，如牙龈病、牙床脓肿、慢性鼻窦炎、后鼻漏、慢性支气管炎或某些食道疾病及其他健康问题。
6.
Although smoke may reduce bacterial activity , this potentially positive effect is drowned out by negatives : smoke dries out the mouth , worsens gum conditions and postnasal drip , and leaves a residue whose aroma mixes with the preexisting oral bouquet 虽然抽菸也许可以降低细菌活性，但这项潜在好处却淹没于众多坏处之中：抽菸使口腔乾燥、损坏牙龈并恶化鼻涕倒流情形，而且残留物的气味还会与原有的口腔异味混杂在一起。
