Septivalent
a. [化]七价的
🗣️ 情景例句
I am sure. So, we'll be expecting the first shipment in less than a month.
那当然。我们都希望第一批货在一个月之内可以装船。
You have to study English, don't you?
你必须学英语，不是吗？
Tom and I are going to have a holiday.
我和汤姆准备去度假。