surveil
verb [ I or T ] uk/səˈveɪl/ us/sɚˈveɪl/
（通常指对犯罪活动进行）监视，监听
to carefully watch a place or person or listen to private conversations over a period of time, usually in order to get information about illegal activity
The new Patriot Act lets the FBI wiretap and surveil more easily. 新的《爱国者法案》使联邦调查局更容易进行窃听和监视。
The warrants give agents broad powers to electronically monitor and surveil people who they allege are connected to terrorism or espionage cases. 这些授权令赋予特工很广泛的权力，让他们可以利用电子设备监视他们声称与恐怖主义或间谍案有关的人。
See also: surveillance
- More examples
- A smart private investigator (PI) will scope out the location ahead of time and pick a few prime spots from which to surveil.
- FBI agents are allowed to surveil a subject for a short period on an emergency basis before seeking a warrant.
- We watch the person using, where possible, the same method of transportation that they are using. For example, if they are on foot, we surveil them on foot. If they are in a vehicle, we do it by vehicle.
- The explosives training also covered how to surveil a place.