No smoking The harmfulness of smoking is clear to everyone, but smokers do not care about the harm caused by smoking. When we are in public, we should pay attention to our behavior and not smoke. In addition to being harmful to your own health, smoking will also be harmful to people around you. Second hand smoke also has an irreversible harm to your health. So we should pay attention to our own behavior and smoke in the allowed places. If there is a sign clearly stating "No Smoking", please follow it. No Smoking. 本文来源：https://www.wddqw.com/doc/10ef766b0366f5335a8102d276a20029bd64632a.html