没办法，我早就接受herd immunity的现实了，除非有效的疫苗出来。

来源: Truemoon 于 2020-06-07 18:08:30 [旧帖] [给我悄悄话] 本文已被阅读：次

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

Change Ad Consent