Today smoking is a widespread habit ali over the world. Not only the old, the youth, but also middle school students have been engaged in smoking. Many of them think that smoking is a smart symbol.

However, smoking is harmful to one's ,health. It contributes a lot of lung cancer, from which many people have died in the past years. It can also cause many other diseases. In a word, if you smoke, you do have a much greater chance of losing your health. Furthermore, scientific research shows that smoking is not only harmful to smokers themselves, but also a threat to public health, especially to women and children. Therefore, many countries have made laws forbidding smokers to smoke m public places such as cinemas, stations, hospitals, and so on Giveup smoking! If you don't smoke, don't start. Give upsmoking for the sake of your health, for the sake of your family, and for the sake of the whole world.

现在，吸烟是一个世界范围的习惯，不仅老年人、青年人吸烟，就连中学生也加入到这个行列中来，他们中的许多人认为吸烟是一种潇洒的象征。

然而，吸烟对人的健康是有害的，它会引起肺癌，在刚刚过去的几年中;许多人因此而丧命，还可能引发其他的疾病。总之，如果你吸烟的话，你就很可能失去拥有健康的机会，更进一步说，科学研究显示，吸烟不仅危害吸烟者本人，而且对公共健康来说，也是一个凶兆，尤其是对妇女和孩子。因此，许多国家都制定了不准在公共场合吸烟的法规，例如：电影院，车站，医院等地。

戒烟吧，如果你还未染上，请不要开始;戒烟吧，为了你的健康，为了你的家庭的健康，为了整个世界的健康。