Sauer's vaccine
[医] 索尔氏菌苗(预防百日咳)
🧩 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
You are twenty-one, a grown-up young lady old enough to make up your own mind.
你已经21岁了，已经到了可以自己做主的年龄了。
I would like to call a plumber to come this afternoon.
我要叫一个水管工人今天下午来。
You can either stay or leave.
你或者留下或者离开。