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　　降低空气污染

　　What can we do to reduce the air pollution?

　　思路

　　1. 公交：

　　make public transportation more accessible: 举例子

　　add more routes, reduce the bus fare

　　2. 植树：

　　filter air and water, absorb carbon dioxide and produce oxygen， breathe fresh air

　　3. 提高环保意识：

　　raise people's environment protection awareness:

　　not litter around, classify the trash, save water and electricity, preserve natural resource

　　4.清洁能源

　　clean energies: nuclear energy, solar power, wind, tide, hydro-electronic power

　　There are lots of ways for the city to reduce air pollution. Firstly, they can cut down the usage of private vehicles, thus the car exhaust can be reduced. The decision makers should invest more money to improve public transportation, like adding more bus routes, making public transportation more accessible, like developing express local trains and repave bumpy roads. Secondly, the government should put forward some policies to subsidize the environment conscious companies that use renewable energies like natural gas, wind power and nuclear power.

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