Labelled atoms
[化] 标记原子; 示踪原子
🧩 词语组成解析
a. 贴上标签的
n. 原子（atom的复数）
🗣️ 情景例句
Very few people last in this class for the full hour the very first time.
很少人能够第一次撑完一个小时的课。
It won't take much time.
不会花很长时间的。
If you have blue ones, send those.
如果有蓝色的，就送蓝色的来吧。