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
Where do I board my train?
我的座位在哪儿？
An empty purse frightens many friends.
曩中无分文，亲友不上门。
Live animals? I didn' t know we were going to take live animals with us, Sir.
活的动物？我还不知道我们要带活的动物，先生。