Variolization
[医] 人痘接种, 天花接种, 引痘
🗣️ 情景例句
Why advanced?
为什么是高级的？
I'm not really sure.
我不太清楚。
The captain knew that another attempt would be made later, for the sunken ship he was trying to find had been carrying a precious cargo of gold bullion.
船长知道日后还会再作尝试，因为他试图寻找的沉船上载有一批珍贵的金条。