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
He says I never turn them out when I leave.
他说我离开时从不关灯。
The doctor says that I should take quinine.
医生说我应该服用奎宁。
Tod's a fool. Ah, here's the things I'm after.
托德真是个大笨蛋。啊，这才是我要找的东西。