地漏傳新冠是一種可能，但是國內好像認真研究過，沒人做吃力不討好但是又十分重要的事。

來源: huntridge 於 2023-01-06 20:32:43 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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