As we all know,smoking is not only bad for our health,but also bad for our society.therefore,our govrenment has publish an ban about forbid people smoke at the public place form 2011.1.1,including the indoor pulic placces,indoor public workplaces and pulic transport means.this ban will first come into power in the medical system.In order to make this ban come into power,we should do what we can to reduce the behavior of smoke around us.we can put up some posteres
