我是纠结在户外要不要戴口罩(如果空气污染指数中等的情况下),因为天太热戴口罩不舒服。(如果空气污染指数达到高度风险的水平时,我就肯定会戴口罩了)
我是纠结在户外要不要戴口罩(如果空气污染指数中等的情况下),因为天太热戴口罩不舒服。(如果空气污染指数达到高度风险的水平时,我就肯定会戴口罩了)
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