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
Lacks confidence and poise is nervous and ill at ease.
信心不足，不够自信，精神紧张，心神不定。
Yes, and I took many pictures.
是的，我还照了好多照片。
As is so often pointed out, knowledge is a two-edged weapon which can be used equally for good or evil.
正像人们常常指出的，知识是一把双刃刀，可以用于造福，也可以用来为害。