Quadrivalents
(quadrivalent 的复数) a. 四价的\\n[医] 四价的
🗣️ 情景例句
Ah, good morning, Robbie.
啊， 早安， Robbie。
We believe that the quality is the soul of an enterprise.
我们认为质量是一个企业的灵魂。
I know it's not necessary. I want to do it.
我知道不必这样，可是我愿付？/span>