现在一个比较难办的局面是：即使将来疫苗造出来了，病毒变异了咋办

来源: 板凳球迷于 2020-06-24 11:38:04 [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.