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
They're both very good buys.
这两栋都是价格便宜的。
How much will you sell me this for?
把这个东西卖给我要多少钱？
He has many strange ideas in his mind.
他脑子里尽足奇思怪想。