Ppps
[医][=polyvalent pneumococcal polysaccharide]多价肺炎双球菌多糖
🗣️ 情景例句
Hi-tech companies needs many interns to work for them during the summer.
高科技公司在夏天需要许多见习生为其工作。
It's a dark town.
这是一个黑暗的乡镇。
He married my aunt in 1971, so Clare would have been five years old.
他1968年与我伯母结婚，那么克莱尔应该已经5岁了。"