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.

　　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。