Thallocenium
二茂铊(阳离子)
🗣️ 情景例句
I'll get some for you.
我去替你买一些。
I know the boy whose father is a professor.
我知道那个男孩的父亲是大学教授。
I'm worried that something has happened to her.
我担心她出了什么意外。