Quadrivalents
(quadrivalent 的复数) a. 四价的\\n[医] 四价的
🗣️ 情景例句
You don't look a day over ...
你看起来一天也不比……大。
If things were to be done twice all would be wise.
事事倘能做两次，人人都可称明智。
Working on a farm
在农场劳动