![Airpollutionbysourcesrangingfromcookingfirestoautosmok...]( "Airpollutionbysourcesrangingfromcookingfirestoautosmok...")
- 问题详情： Airpollutionbysourcesrangingfromcookingfirestoautosmokecontributedtoanestimatedsevenmilliondeathsworldwidein2012，theUNhealthagencysaidTuesday.“Airpollution,andwe，retalkingaboutbothindoorsandoutdoors,isnowthebiggestenvironmentalhealthproblem,...
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