Vaccinid
[医] 牛痘疹
🗣️ 情景例句
It's about the size of the United States, but it has a population of only 16.5 million.
它和美国一般大，但人口却只有一千六百五十万。
The worst is yet to come.
最糟的还不只这样。
These two have travelled through the earth.
这两种波都是穿过地球而来的。