二手烟包括“侧流烟”(烟草产品燃烧释放的烟)和“主流烟”(吸烟者呼出的烟)。

Secondhand smoke is the combination of "sidestream" smoke (the smoke given off by a burning tobacco product) and "mainstream" smoke (the smoke exhaled by a smoker).

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对吸烟和二手烟的健康危害，公众有着大量误解。主流社会认为吸烟是可接受的习惯，因此吸烟仍很广泛。

Numerous public misconceptions remain about the health hazards of smoking and secondhand smoke. Mainstream society considers smoking an accepted behavior and smoking remains popular.

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