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
It is! She's having pains a minute apart!
是啊。她隔一分钟就会痛呀。
You'll drop it, if you don't teke care.
你不专心的话，就会掉下。
What are you going to buy?
你打算买什么？