Lanthanoid
镧系元素
🗣️ 情景例句
Well, perhaps,
好的， 也许，
Yes,I had breakfast two hours ago.
是,我2小时以前吃了早餐。
I turned to look at the children, but there weren't any in sight: they had all run away! The man laughed when he realized what had happened.
我转过头去看那些孩子，但一个也不见，全都跑了！当那个人明白了发生的事情时，笑了起来。