Pertussis vaccine
[医] 百日咳菌苗
🧩 词语组成解析
pertussis
[pə'tʌsis]
n. 百日咳;
vaccine
['væksi:n]
n. 疫苗，痘苗;
adj. 痘苗的，疫苗的;
🗣️ 情景例句
What subject did you major in university?
你在大学主修的科目是什么？
In fifty years there'll be twenty people per square yard, it is written here.
这里写着，再过五十年每平方码将要住着20人的人口密度。
I left the bag in the hall and Robert and I went into the living room where we talked for a couple of hours.
我把纸袋放在门厅里，与罗伯特一起进了起居室，在那里聊了好几个钟头。