保護環(huán)境遠離霧霾英語作文
關于霧霾的英語作文

        Since the winter last year，the haze has occurred a lot of times.Haze is air pollution in which is mixed up with dust， smoke and other dry particles ，and it obscure the clarity of the sky and interacts with the natural environment.This kind of air pollutant come from a variety of natural and manmade sources. Natural sources can include windblown dust， and soot from wildfires. Manmad    （共 1956 字）     [閱讀本文] >>