TheUnitedStatesisfullofcars.Therearestillmanyfamilieswi...
問題詳情：TheUnitedStatesisfullofcars.Therearestillmanyfamilieswithoutcars,butsomefamilieshavetwoormore.However,carsareusedformorethanpleasure.Theyareanecessarypartoflife.Carsareusedforbusiness.Theyared...