1.
interchange trailer
n.1. 交换追踪器
2.
To set(hounds) to chase game.
使（猎犬）追踪猎物
3.
follow-up study
随访研究，追踪研究
4.
a false(ie misleading)scent
并非所追踪的臭迹.
5.
someone who tracks down game (or criminals).
追踪猎物（或罪犯）的。
6.
follow the trail of sb/sth;track sb/sth
追踪或尾随某人[某事物
7.
track a satellite, missile,etc using radar
用雷达追踪卫星、导弹等
8.
dogs scenting their prey.
通过嗅觉追踪猎物的狗
9.
selective automonitoring tracing routine
选择自动监视追踪程序
10.
They set themselves to hunt down the traitor.
他们自己去追踪叛徒了。
11.
She was hounded by the press.
她受到记者的追踪。
12.
The hunter is trailing a wild animal.
猎人在追踪一只野兽。
13.
He knew they were tracing him.
他知道他们正在追踪他。
14.
The militiamen started off in pursuit of the enemy.
民兵出动了，去追踪敌人。
15.
They are hunting him with dogs.
他们用狗来追踪他。
16.
The dogs trailed the rabbit.
那几条狗追踪那只兔子。
17.
They tailed the suspect day and night.
他们日夜追踪嫌疑犯。
18.
He was tracking you.
它刚才在追踪你呢。