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
This is very helpful, Mrs. Martinelli.
这样很有用， Martinelli太太。
Are you going anywhere?
你打算上哪儿去玩？
the famous Calabrian macaroni-eating competition! Signor Fratelli, the present champion, has won it every year since 1991.
著名的克拉布利亚人吃通心粉大赛！目前的冠军弗拉特里先生，自1991年以来，年年获胜。