Heptavalent
a. 七价的
🗣️ 情景例句
who used to run the drugstore in town.
他过去在镇上经营药房。
It must be rather difficult for us to push any sales if we buy it at this price.
如果我们按这个价格购买，将很能难推销。
In that first glorious hour, the mighty Vasa , which was intended to rule the Baltic,
就这样，想要统治波罗的海的大型战舰"瓦萨号，在它壮丽的起航时刻，