Activable tracer
[化] 可活化示踪剂
🧩 词语组成解析
a. [化]能被活化的
tracer
['treisə]
n. 追踪者，描图者，（铁笔等）绘图工具;
🗣️ 情景例句
Hi, Alexandra.
嗨， Alexandra。
Quick at meal, quick at work.
吃得快，做得快。
I'll get back to you as soon as I can.
我会尽快给你回音。