吸烟是慢性支气管炎、肺气肿和慢性气道阻塞的主要诱因之一的翻译：Smoking is a chronic bronchitis, emphysema and chronic airway obstruction by one of the main incentives 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Smoking is a chronic bronchitis, emphysema and chronic airway obstruction is one of the major incentives

Smoking is a chronic bronchitis, emphysema and chronic airway obstruction by one of the main incentives

Smoking is chronic bronchitis, pulmonary emphysema and one of chronic gas channel blocking main causes

Smoking is a chronic bronchitis, emphysema and chronic airway obstruction of a major incentive for

Smoking is a chronic bronchitis, emphysema and chronic airway obstruction by one of the main incentives