哪家白癜风能治愈 https://wapjbk.39.net/yiyuanfengcai/tsyl_bjzkbdfyy/aerosol，(喷油漆、头发定型剂等的)喷雾器，雾化器；气雾剂；气溶胶。Whatistheeatmosphericaerosol?Whyaretheysoimportant?大气气溶胶是什么，为什么如此重要？TheairisfullofNCPaerosolparticles.空气中充满了NCP病毒的气溶胶微粒。WeshouldwearamasktokeepfromaerosolofNCP.我们应该戴口罩隔离NCP气溶胶。keepfrom，隐瞒；阻止；免于；忍住，戒。
