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
Excellent job.
做得太棒了。
She began playing the violin when she was nine.
她从九岁就开始练习小提琴。
I'm a director. I direct plays.
我是导演。我导演戏剧。