Antismallpex vaccine
[机] 抗天花血清
🧩 词语组成解析
vaccine
['væksi:n]
n. 疫苗，痘苗;
adj. 痘苗的，疫苗的;
🗣️ 情景例句
I started traveling twenty-four hours ago.
从出门到现在已经二十四小时了。
Paint the porch, fool, or else.
傻瓜，快去漱漱口，不然哪
How did you decide that product was safe?
你怎样决定产品是安全的呢？