Everyone knows smoking is bad for our health. People who smoke too much may not live long. Millions of people die from smoking each year. Smoking causes many illnesses. Those who often smoke have bad teeth. A lot of people always cough because of smoking. One of the most serious illnesses caused by smoking is lung cancer(肺癌). Many people suffer(遭受痛苦) from this terrible illness and lose their lives. Smoking is not only bad for smokers, but also bad for non-smokers, especially women and children. They may get their health harmed because of the smoke caused by cigarettes(烟草). Smoking is not good for health. I hope all the smokers can give up smoking for themselves and also for the people around them. Let's enjoy clean air together.