Septavalency
(=septavalence)[化]七价
🗣️ 情景例句
May I help you, sir?
需要我帮忙吗，先生？
The bird loves her nest.
鸟爱自己的窝。
Let's move on to what makes our product sell so well.
让我来说明是什么原因使我们的产品销售得那么好。