前期無任何措施的時間段，此病的傳播力度，人口密度，無症狀感染者的比例，嚴重程度難以想象。

來源: 纖風於 2020-04-07 03:06:54 [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.