Pentavalent
a. 五价的\\n[医] 五价的
🗣️ 情景例句
You may be offered coffee, and then you should immediately announce the reason for your visit.
他们会给你冲咖啡，然后你应该尽快说明来意。
Let's get together sometime.
有时间我们聚一下吧。
I'm getting a new computer for birthday present.
我得到一台电脑作生日礼物。