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出 处:《中小学外语教学》2005年第8期37-38,共2页Foreign Language Teaching in Schools
摘 要:Car PollutionSome cars do not run the way they should.Bad smoke from a car can get into the air.Thisbad smoke is called pollution.Pollution turns the air a gray(灰色的) color.It is very dirty.It is not good for people tobreathe this dirty air.To keep pollution down,the States testscars every two years.This test checks to makesure the cars do not pollute the air.If aSome cars do not run the way they should. Bad smoke from a car can get into the air. This bad smoke is called pollution.
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