空气质量指数超过100对敏感人群不健康。敏感人群指的是患有哮喘和心脏疾病的人。
Anything over 100 could be considered unhealthy for sensitive groups. We're talking about people with asthma as well as heart conditions.
空气质量指数超过100对敏感人群不健康。敏感人群指的是患有哮喘和心脏疾病的人。
Anything over 100 could be considered unhealthy for sensitive groups. We're talking about people with asthma as well as heart conditions.
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