Smallpox vaccine
[医] 牛痘苗
🧩 词语组成解析
smallpox
['smɔ:lpɔks]
n. 天花;痘疮;痘;
vaccine
['væksi:n]
n. 疫苗，痘苗;
adj. 痘苗的，疫苗的;
🗣️ 情景例句
In two or three months, I'll have an advance on my book
两到三个月后 我能得到我那本书的预付款
Let me guess.
让我猜一猜。
We're going to have to put your account on C.O.D.。
今后我们不得不将您的户头改为C.O.D.。