We should reduce the number of vehicles on the road through the use of public transportTo establish factories away from the city, planting design in many green plants in the city, it is important for you in the city park because the park is the city's lung, it helps a lot of dust and air oxidation, air filter, reduce the use of natural gas in the residential toxic, not burning garbage, burning forest
đang được dịch, vui lòng đợi..
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