Nineoutof10peopleontheplanetbreathepollutedair,evenoutd...
问题详情：Nineoutof10peopleontheplanetbreathepollutedair,evenoutdoors,theWorldHealthOrganisationsaid.Some92%ofthepopulationliveinplaceswhereairpollutionexceeds(超过)WHOlimits.Airpollutioncancontributeto...