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therefore， smoking is a bad habit. it can cause a lot of diseases. meanwhile smoking is a waste of money. besides，smoking is harmful and it is not only bad for smokers themselves， even ineluding some middle school students.吸烟有害_650字， think that smoking ca
温馨提醒：随时光变迁，文中所陈述观点；准确性、难免有所变动，因此文中观点仅供参考。
