青云翻译

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Aother solution is to develop modern public transportation systems and restrict the use of private cars. If the price of petrol rises constantly and the public vehicles are efficient and convenient enough,most people will not private cars. And the total number of cars in big cities will reduce great

正在翻译，请等待...

Aother solution is to develop modern public transportation systems and restrict the use of private cars. If the price of petrol rises constantly and the public vehicles are efficient and convenient enough,most people will not private cars. And the total number of cars in big cities will reduce great