![閱讀理解FightwithpollutionHundredsofyearsago,lifewashardert...]( "閱讀理解FightwithpollutionHundredsofyearsago,lifewashardert...")
- 問題詳情：閱讀理解FightwithpollutionHundredsofyearsago,lifewasharderthanitistoday.Peopledidn’thavemodernmachines.Therewasnomodernmedicine,either.Lifetodayhasbroughtnewproblems.Oneofthebiggestispollution.Waterpollutionhasmadeourriversandlakesdirty.Itki...
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