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Theenvironmentpollutionismoreandmoreseriouslytoday.Weha...
问题详情:Theenvironmentpollutionismoreandmoreseriouslytoday.Wehavenocleanwatertodrinkitbecauseofwaterpollution.Andwhentreescutdown,someanimalsdisappear.Therewasmoreandmoredirtysmokeintheair.People'she...