deardad,
I'mwritingtotellyou not to smoke anylonger.
As we allknow ,smokingisharmful to our health. Accordingtomedicalsurvey,smokingtoomuchwill causelung cancer 【肺癌】.Besides,when youaresmoking ,thesmokewillaffect people aroundyou.Forexample,motherandimay getcough. IN a word ,smoking is harmful to bothyou and your family.In order tobuild acleaner and healthier environment for us tolive ,ihopeyou can give upsmoking.
loveyou
your son