Nowadays, many school students smoke, and the number is growing increasingly, which makes school and parents worried.

According to a survey, more than two fifths of the students smoke in a school. They often get extra money from their parents to pay for cigarette, but their parents usually do not realize it. Even, some students steal money to buy cigarette, which is really a serious event. For middle school students, smoking do more harm to them than to adults, which is not only harmful to the body, but also detrimental to thinking. Furthermore, smoking is also harmful to others. Experts say that the second-hand smoke do more harm to others than the smoker.

In short, smoking is a bad habit which wastes of money as well as do harm to health.

如今，许多学校学生吸烟，和数量日益增长，使学校和家长的担心。

据调查，五分之二以上的学生在学校里抽烟。他们经常得到额外的钱从他们的父母支付的香烟，但通常他们的父母不知道。甚至，一些学生偷钱买烟，这真是一个严重的事件。对中学生来说，吸烟的危害更大，他们比成年人，这不仅有害于身体，但也不利于思考。此外，吸烟是有害于他人。专家说，二手烟造成更大的伤害，比其他吸烟者。

总之，吸烟是一种坏习惯，金钱的浪费以及对健康有害的。