1: the problem of polution
2: this problem is becoming the greatest one of all the problems.
3: the emission of vehicle------this issue------
4: the quality of gasoline is not qualified
5: the number of vehicle is largely increased
6: many city lack practical transportantion. This also encourages people to use their private cars.
7: deal with this issue.
8: First of all, build more infrastructure for people to use as their daily transportation.
9: try best to reduce the number of vehicles and encourage people to take public transportation.
10: Only in this way, we can cope with this problem and greatly reduce the amount of emission.
2: this problem is becoming the greatest one of all the problems.
3: the emission of vehicle------this issue------
4: the quality of gasoline is not qualified
5: the number of vehicle is largely increased
6: many city lack practical transportantion. This also encourages people to use their private cars.
7: deal with this issue.
8: First of all, build more infrastructure for people to use as their daily transportation.
9: try best to reduce the number of vehicles and encourage people to take public transportation.
10: Only in this way, we can cope with this problem and greatly reduce the amount of emission.
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