Sniffer dogs could be trained to track them down.
可以训练嗅探犬来追捕他们。
It is thought that the train hit a boulder that had fallen down a cliff on to the track.
人们认为这列火车撞到了从悬崖滚到铁轨上的大圆石。
The police have so far failed to track down the attacker.
警方至今未能追捕到攻击者。
Car manufacturers stamp a vehicle identification number at several places on new cars to help track down stolen vehicles.
汽车生产商们在新车车身的几个地方打上车辆识别码以帮助追查被盗车辆。
She had spent years trying to track down her parents.
她已经花了多年试图找到她的父母。
A clearly defined track now leads down to the valley.
如今一条轮廓清晰的小径通向峡谷。
In Amsterdam, officials are using Airbnb listings to track down unlicensed hotels.
在阿姆斯特丹，官员们正使用爱彼迎名单来追踪无证经营的酒店。
They also want the INS to hire hundreds more border patrol agents and investigators to keep illegal immigrants out and to track them down once they're here.
他们还希望移民归化局再雇佣数百名边境巡逻人员和调查人员，将非法移民拒之门外，并在他们抵达后对他们进行追踪。
These are easy enough to track down.
这些很容易追踪。
You may need to track down drivers for some hardware.
您可能需要跟踪一些硬件的驱动程序。
To track down the true limits on your applications' speed, you need to be prepared to tackle both the hard and the easy problems of performance.
要追踪到您的应用程序在速度上的确切限制，您需要准备处理困难和简单的性能问题。
After finishing the unscrambling participants left the room to track down the experimenter but found them deep in conversation with someone, forcing them to wait.
在完成字谜之后，参与者离开房间去找实验者，结果却是发现他们正与别人聊得正欢呢，这使得他们必须等待。
"They patrol with vehicles carrying German-made radio detectors to track down and hunt users," he said.
他们开着车，带着德国制造的无线电探测器来跟踪并搜寻手机用户。
This can result in undefined and unexpected behavior, which can be difficult and time-consuming to track down.
这可能导致不明确、不可预见的后果，要跟踪这种情况也是很困难很耗时间的。
Not only can this be a painful experience, but it makes it rather difficult to track down the source.
这不仅仅是一个痛苦的经历，这还让医生难以确定疼痛的原因。
After reviewing one incoming guest's file, staff discovered they needed to track down a particular 'tissue,' says Ms. Garay.
加雷说，浏览完一位即将入住的客人的档案后，员工们发现他们需要找到一种特别的“纸巾”。
The survey also found that more Americans are using Internet search engines to track down news on topics of interest.
调查也发现多数美国人会使用互联网搜索引擎来跟踪特定话题的新闻。
This allowed us to find changes easily, and if needed to track down any performance issues.
这使得我们可以简便地查找更改，并且如有需要，可以找到任何性能问题。
Many of the stricken families were farmers or migrant workers, whose restless lives may make them difficult to track down.
许多患儿家庭是农民或农民工，其不安定的生活使他们难以继续追踪这件事。
You don't need to waste time trying to track down video drivers or SCSI drivers.
您不必将时间浪费在尝试寻找显卡驱动程序或SCSI驱动程序上。
If there are major outliers, the team will track down more information to verify the original source.
当发现较大的异常时，他们会追溯更多的信息来验证原始数据源。
Initially the FBI said it wanted to track down infected computers in the botnets it had identified and warn their owners.
最初，FBI表示，它希望在僵尸网络中追捕到它已确定并警告过其拥有人的那些受感染电脑。
A friend had to track down more ground beef, but even that was not enough.
她的一个朋友不得不去购买更多的牛肉饼，但那也不够。
Some are users of illegal file-sharing networks who want to be harder to track down.
一些是非法文件共享网络用户-他们想要的就是监管者难以追查出其网上活动。
Now that Athens has a computerised land registry, it should be easier to track down and prosecute tax evaders.
既然雅典有一个计算机化的土地登记制度，应该很容易查获避税行为和对避税者进行起诉。
We typically used it to track down performance problems and to ensure that no areas of code were wasting CPU or real-time cycles.
我们通常使用它来跟踪性能的问题确保没有哪断代码浪费了CPU或者实时周期。
Metadata can be used to create documentation, to track down dependencies in code, and even to perform rudimentary compile-time checking.
元数据可以用于创建文档，跟踪代码中的依赖性，甚至执行基本编译时检查。
Record it down to keep a track of your progress.
记录下来，留下进步的轨迹。
But legal experts say that exempting derivatives from the automatic stay can make it harder to track down parties that owe money to Lehman on such contracts.
但是法律专家表示将衍生产品合约排除在自动冻结范围内将使清算在衍生产品合约中向雷曼兄弟公司的借贷者变的困难。
But legal experts say that exempting derivatives from the automatic stay can make it harder to track down parties that owe money to Lehman on such contracts.
但是法律专家表示将衍生产品合约排除在自动冻结范围内将使清算在衍生产品合约中向雷曼兄弟公司的借贷者变的困难。
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