tracer
'treisә
基本解释
n. 追踪者, 描图者, 描绘工具
[计] 跟踪程序
英文释义
n. an investigator who is employed to find missing persons or missing goods
n. an instrument used to make tracings
n. (radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes
词形变化
上一个单词：traceless criem
下一个单词：tracer atom