Ppps
[医][=polyvalent pneumococcal polysaccharide]多价肺炎双球菌多糖
🗣️ 情景例句
The subject is unfamiliar to me.
那个问题我不熟悉。
He insisted that we all be in his office at one o'clock.
他要求大家一点钟到他的办公室。[大学英语四级]
Thank you.
谢谢。