![九年級作文帶翻譯air pollution]( "九年級作文帶翻譯air pollution")
- 九年級作文帶翻譯airpollutionAirpollutionisoneofthemajorproblemsofthemodernworld.Agreatdealofenergyisneededtorunthefactoriesofmodernindustrialnations.Automobile,trains,planesandbussesneedenergy,too.Nearlyallofthisenergyisproducedbyburningfuels.Theburnin...
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