Tracer element
[化] 示踪元素
🧩 词语组成解析
tracer
['treisə]
n. 追踪者，描图者，（铁笔等）绘图工具;
element
['ɛləmənt]
n. [化]元素;要素;原理;[电]电阻丝;
🗣️ 情景例句
Thank you, Grandpa.
谢谢你， 爷爷。
Would you like to leave your name and number?
你想要留下你的名字和电话吗？
Kidnappers are rarely interested in animals, but they recently took considerable interest in Mrs.Eleanor Ramsay's cat.
绑架者很少对动物感兴趣。最近，绑架者却盯上了埃莉诺。拉姆齐太太的猫。