Ppps
[医][=polyvalent pneumococcal polysaccharide]多价肺炎双球菌多糖
🗣️ 情景例句
It's good that you went back.
你回去是对的。
Do you have any brothers?
你有兄弟吗？
There are mice next to the refrigerator, under the sink and inside the cupboard!
冰箱边、洗碗槽下，还有橱柜里面都有老鼠！