In fact, smoking is a bad habit. It can cause a lot of diseases. Meanwhile smoking is a waste of money. Besides, careless smokers may cause dangerous fires.

• 事实上，吸烟是一种不好的习惯，它能导致很多疾病。同时，吸烟很浪费金钱。除此而外，粗心的烟民还可能引起火灾。