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
For some reason, I couldn't get a handle on it.
因为某些原因， 我就是开不了窍。
After the flood, the carpets were wet for a month.
洪水过后一个月，毛毡还是湿的。
What do you do?
你做什么工作？