追寻; 查获; 追捕到，追查出
1. 追踪：在发现一例感染者后,香港官方采取极端措施(frantic measures)来追踪(track down)任何与被感染的墨西哥人接触过的(have contact with)人,并将健康安全警报(health alert)提高到最高级别.
2. 找到,发现;查出：touch up 修改,改进 | track down 找到,发现;查出 | track out 根据(遗迹等)探索出
3. 追捕到：track and field 田径 | track down 追捕到 | track events 径赛
4. 追捕：Case matters 注意大小写 | Track down 追捕 | Bootstrap loader 自举装载程序
1. 追踪到;追查到;搜寻到
If you track down someone or something, you find them, or find information about them, after a difficult or long search.
e.g. She had spent years trying to track down her parents...
她已经花了好多年时间试图追寻父母的下落。
e.g. I don't know where that old story came from, I've never been able to track it down.
我不知道这则旧传闻的出处，我从来没能考证出结果。
1. Henan authorities have recently carried out a campaign to track down illegal immigrants, the Legal Evening News reported yesterday.
2. I turn, and in the distance a small cavalcade of vans is slowly moving down the track.
3. Democrat John Kerry made the failure to track down bin Laden a central part of his criticism of Bush in Thursday's first presidential debate.
4. But the biggest change he made as a writer and researcher was to use the Web only to track down source material.
5. It included his return address, allowing the Russian teen to track him down.
6. Police used his emails to track down his IP address and nabbed him at home.
7. His grandma cooked a special dish that she believed would give him the energy required to sprint down a track and leap over obstacles.
8. He has also ordered relevant agencies of government to track down whoever has done wrong and bringing whoever found culpable to book.
9. Ambulances ferried the dead down a dirt track near the crash site, heading for morgues.
10. Su discovered Guo's deception two months later when she tried to track him down.