PM2.5三百是比健康標準高出10幾倍。出門喘氣兒不覺得,後來確實覺得有些肺癢癢,不時要咳咳幾下。回美國一個多星期,沒事了。
PM2.5三百是比健康標準高出10幾倍。出門喘氣兒不覺得,後來確實覺得有些肺癢癢,不時要咳咳幾下。回美國一個多星期,沒事了。
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