Tracer bullet
曳光子弹
🧩 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
Yes, Mr. Carlson. Yes, sir.
是的 ，Carlson先生。好， 先生。
That's ok fine.
挺好的。
still persists, however; and it is as fierce as it ever was.
依然在进行着，而且和以前一样激烈。