At present, many teenagers smoke. I don't think it's a good phenomenon. It must be stopped, for smoking is harmful in many fortable as well.
此外，如果我们在公共场所吸烟，我们可能会让其他人感到不舒服。
Accordingly, for the sake of your and others' health, please don't smoke.
因此，为了您和他人的健康，请不要吸烟。