Smoking is a kind of harmness.Scentists proved that smoking is not only harmful to smokers themselves, but also harmful to others' health, and even cause various diseases such as cancer, heart disease and so on.Besides, smoking can also pollute the air or cause fire.In spite of the fact that cigarette is expensive, smokers spend a quantity of money on the purchase of cigarette, which not only costs money ,but also costs time.Thus, we should advise those smokers to give up smoking, for the benefit of themselves, and for the benefit of the whole society. 麻烦翻译一下这篇作文