tracer

'treisә

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

中文翻译

n. 追踪者, 描图者, 描绘工具
[计] 跟踪程序

22,266
BNC 频率
18,424
使用频率

记忆技巧

tracer 由词根 trace（追踪）和后缀 -er（表示执行某种动作的人或物）组成，意为“追踪者”或“跟踪器”。

例句

1. The scientist used a tracer to study the flow of water in the river.
科学家使用示踪剂来研究河水的流动。
2. In the game, the player can use a tracer to track their opponent's movements.
在游戏中，玩家可以使用追踪器来跟踪对手的动向。
3. The detective found a tracer that helped him solve the mystery.
侦探找到了一种示踪器，帮助他解开了谜团。

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