Posturanic elements
[化] 超铀元素; 铀后元素
🧩 词语组成解析
n. 原理, 基础
🗣️ 情景例句
She's really a good friend, isn't she?
她真是我的好朋友，不是吗？
Every salesman boasts of his own wares.
老王卖瓜，自卖自夸。
Now, this is the chemistry lab. Have you been in this lab before?
好啦，这是化学实验室。你们以前到过这个实验室吗？