tracker

['trækə]

n.追踪者, 跟踪器

例句与用法：

Paul has tracked down an early recording of Scott Joplin playing one of his rags.

保罗已找到了斯科特·乔普林所演奏过的一个散拍乐曲的早期录音。

The police tracked the terrorists to their hide-out.

警方跟踪恐怖分子至其藏匿处。

The murderer kept on step ahead of the police for years, but they finally tracked him down in Hong Kong.

数年来，该杀人犯行动总是快警方一步而屡屡得逞，但他们最终在香港将其抓获归案。

A small rounded and domed structure, as for observation, on a tracked, armored vehicle.

旋转炮塔用于观察等的小型圆形或半圆形建筑物，装在有履带的装甲车上

详细释义：

n.

1. 追踪者; 追捕者

2. 【无】跟踪雷达; 追踪系统