Actinide elements
[化] 锕系元素
🧩 词语组成解析
n. [化]锕类
n. 原理, 基础
🗣️ 情景例句
After Richard was born.
等生下Richard之后。
They that sow in tears shall reap in joy.
泪水汪汪播种，得意洋洋收获。
Yes, it was. But it's much colder today.
是的，昨天冷。但是今天更冷。