关于Airpollutionsuchassm的百科

• Airpollution,suchassmog,hasbecomeaseriousproblemaroundt...

• 问题详情：Airpollution,suchassmog,hasbecomeaseriousproblemaroundtheworld.Besideswearingamask,whatelsecanwedotoprotectourselvesfromthedirtyair?   Scientistshavedevelopedanewinhaler(吸入剂)thatcanreducetheeffectairpollutionhasonpeople.Itcouldhelpmilli...
• 2020-10-2221297