Pneumococcal vaccine
[医]肺炎球菌菌苗<生物制品>
🧩 词语组成解析
[医] 肺炎球菌的
vaccine
['væksi:n]
n. 疫苗，痘苗;
adj. 痘苗的，疫苗的;
🗣️ 情景例句
I invited her to come by for dessert.
我邀请她来吃甜点。
Yes, she lives just across the street.
是的，她就住在街对面。
How long was that?
多长时间了？