Variolization
[医] 人痘接种, 天花接种, 引痘
🗣️ 情景例句
Unbelievable!
真不敢相信！
While (or Where) there is life there is hope.
留得青山在，不怕没柴烧。
I hired a car the day after landing and bought a comprehensive book of maps,
我下飞机后租了一辆车，并买了一本详尽的地图册。