as we know that people should live in a clan the air should also be very clear er ,the heavy pollution of the air lasted the whole january of 2013 in china was called the atmospheric haze was bad for people is health and it coula stop the traffic was a terrible kind of weather internet users called it airmageddon. to deal with the heavy air pollution ,many families began to use air many people wore air filtration face masks on the way to work local governments also stopped the buses from going on the way.
六年级:123456
