9010已装备。“@BeijingAir: 02-21-2013 17:00; PM2.5; 264.0; 314; Hazardous (at 24-hour exposure at this level)”
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@onionsama 辦公室戴一天啦。 -
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@onionsama 窗應該是擋不住 PM2.5 的…有人被我嚇得找我買口罩救急。
End of conversation
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