求翻译：抽烟是不好的。有些人认为吸烟很酷，有些人认为吸烟可以有助于他们放松心情。但是吸烟会使他们的牙齿变黄，使他们经常咳嗽。吸烟对肺不好，还有可能致癌。我必须阻止他们吸烟是什么意思？

Smoking is not good. Some people think that smoking is cool, some people think that smoking helps them relax. However, smoking will make them turn yellow teeth, so they often cough. Smoking on the lungs is not good, there may be carcinogenic. I have to stop them from smoking

Smoking is not good. Some people think that smoking is cool, some people think that smoking can help them relax. But smoking will make their teeth turn yellow, so that they often coughing. Smoking is not good, there is also the possibility of lung cancer. I have to stop their smoking

Smokes is not good.Some people thought smoking is very cruel, some people thought smoking may be helpful in them relaxes the mood.But smokes can cause their tooth to change yellow, causes them to cough frequently.Smoking is not good to the lung, but also has the possibility carcinogenicity.I must pr

Smoking is not good. Some people believe that smoking is cool, some people think that smoking can help them to relax. But smoking makes their teeth turn yellow, they often coughs. Smoking is not good for lungs, and may cause cancer. I have to stop them from smoking

Smoking is not good. Some people think that smoking is cool, some people think that smoking helps them relax. However, smoking will make them turn yellow teeth, so they often cough. Smoking on the lungs is not good, there may be carcinogenic. I have to stop them from smoking