Labelled atom
[化] 标记原子; 示踪原子
🧩 词语组成解析
a. 贴上标签的
🗣️ 情景例句
And what sort of job?
哪一类的工作？
We guarantee quality products which can stand fierce competition.
我们保证提供能经得起激烈竞争的高质量产品。
Here and here. And I can only move my arm as much as this.
这儿和这儿。我只能这样摆动手臂。