Tracer atom
[化] 示踪原子
🧩 词语组成解析
tracer
['treisə]
n. 追踪者，描图者，（铁笔等）绘图工具;
🗣️ 情景例句
I grew up in a very close, loving family.
我生长在一个亲密友爱的家庭中。
I strongly recommend this product.
我强力推荐这种产品。
Pippa. I called to ask you if you'd like to come to a lecture on Thursday evening at the college.
皮普，我打电话是问你是否想听周四晚上在学院的一个讲座。