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
My mother is a housewife and my father is retired.
我妈妈是家庭妇女，我爸爸退休了。
It's urgent to improve the packing.
必须马上改进包装。
the only sound that could be heard was made by water which dripped continuously from the high dome above them.
唯一的可以听见的声响是高高的圆顶上不间断地滴水的嘀嗒声。