比也難說明什麽。不僅僅是疫苗因素，病毒變了，傳播率致死率，地域環境措施等等因素都在變，此時彼時。

來源: pickshell 於 2022-01-22 12:46:15 [舊帖] [給我悄悄話] 本文已被閱讀：次

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