PM2.5三百是比健康标准高出10几倍。出门喘气儿不觉得,后来确实觉得有些肺痒痒,不时要咳咳几下。回美国一个多星期,没事了。
PM2.5三百是比健康标准高出10几倍。出门喘气儿不觉得,后来确实觉得有些肺痒痒,不时要咳咳几下。回美国一个多星期,没事了。
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