surveillance

Definitions

Common Collocations

• 1.surveillance camera监控摄像头
• 2.under surveillance处于监视之下
• 3.mass surveillance大规模监控
• 4.surveillance system监控系统

Example Sentences

• 1.

  The suspect was placed under 24-hour surveillance by the police.

• 2.

  The city installed hundreds of surveillance cameras to improve public safety.

• 3.

  Privacy advocates warn that mass surveillance threatens civil liberties.