Univalent vaccine
[医] 单价菌苗
🧩 词语组成解析
a. 一价的, 单价的\\n[医] 一价的, 单价的; 单价体
vaccine
['væksi:n]
n. 疫苗，痘苗;
adj. 痘苗的，疫苗的;
🗣️ 情景例句
Did you do anything special?
你们做了什么特别的事情吗？
No, no!
不要！不要！
It seems she was in class on Friday afternoon, but no one has seen her since.
好象她星期五还在教室，但从那以后没人看见过她。