as more and more people realize the harm of smoking to the body, the government began to carry out the policy to ban smoking in public places. public places smoke-free policies got most of the public, but als facing a lot of difficulties. First of all, a country with a large population, in order to achieve the public smoking ban has some difficulty. Secondly, to ban public smoking policy carry out in the round also lack the necessary supervision and punishment mechanism. Again, people are lack of the awareness of smoking. in my opinion, public places smoke-free policy to be able to carry out must adopt certain measure of rewards and punishment, set the corresponding facilities. In addition
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