Evething
　As the time went by,guangzhou has a new technology,but it is the ptice we pay for an overpopulated,over-industrialized.
　Nowadays,guangzhou has lots of pollotion.For exceple,air pullotion,niose pollution and so on.All these was course the industrialized--light industry and heavy industrial .It will make chemical rian ,then the buildings were distory.Chenjiachi is a good exceple.
　If we don't pay attetions to the pollution, it will　be back for us . So we should plant as much as trees we can,and make the city more and more wonderful