说中国有空气污染那是事实，但说在昆明要天天戴口罩才能出门，那就要么是胡说，要么就是有病！

来源: 研究研究于 2017-05-26 07:55:09 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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