請給個鏈接。20倍，可以理解為5%是打過疫苗的嗎？

來源: 零不是數於 2021-11-17 16:19:08 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.