![九年级作文带翻译air pollution]( "九年级作文带翻译air pollution")
- 九年级作文带翻译airpollutionAirpollutionisoneofthemajorproblemsofthemodernworld.Agreatdealofenergyisneededtorunthefactoriesofmodernindustrialnations.Automobile,trains,planesandbussesneedenergy,too.Nearlyallofthisenergyisproducedbyburningfuels.Theburnin...
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