There are millions of people all over the world who smoke. Most of these smokers have tried to quit
smoking at least once in their lives, but in vain. Make no mistake; smoking is addictive. And once you are
addicted, it's very difficult to stop smoking. Many people have tried many different ways to kick the habit.
None of them is easy.
    Take a tip from me. I smoked for twenty-five years. Then one day, I decided to quit cold turkey after
trying everything else. It worked. That was two years ago and I haven's smoked a single cigarette since then.
Good luck!

do sb good    good名词   Excerising at least three times a week does everybody good.
Smoking will do you harm.
in vain  adv.徒劳地
addictive 上瘾的   sb be addicted to sth 对...上瘾
ganbling 赌博
chase 追求
once and for all 一劳永逸
a single cigarette   single强调
cold turkey 一劳永逸地