Cigarette smoking may be damaged respiratory system, causing pitting lung or lung cancer. Thus, cigarettes do to the health and longevity of serious decline. Tobacco is not only harmful to people directly use it, but also affect the people around because of smoke spread in the air that they must be severely affected. Currently, while in public places such as bus stations and even schools, government offices, we still encounter many smokers do not care about your health and feeling of the people around. Thus they indirectly jeopardize public health
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