Smokingisharmfultothesmoker'sheathy.Smokemayresultinadarkteethandmaycausebronchitisandlungdeases.Whenthesmokesspeadintotheair,itwillmaketheairdirtyandnotgoodtootherpeople,speciallyforthekidsandoldpeoples.Smokinginpublicwilldisturbothersandisnotpoliteaswell.

　　Ofcourse,totheordinaryfamilly,smokingwillcostabigmoneyandisaheavyburdenforthelife.

　　吸烟危害健康.吸烟可让人的牙齿变黑、引起支气管炎和肺病.当烟雾在空气中扩散时,它会污染空气并危害他人,尤其是孩子和老人.在公共场合吸烟会打扰他人而且也不礼貌.

　　当然,对一个普通的家庭来说,吸烟将花费一大笔钱并造成沉重的生活负担.