Quadrivalents
(quadrivalent 的复数) a. 四价的\\n[医] 四价的
🗣️ 情景例句
A serious matter.
一个严重的问题。
I want to report a theft.
我要报一宗盗窃案。
They have been told that rescue operations are progressing smoothly.
他们一直被告知营救工作进行得非常顺利。