n. close observation of a person or group (usually by the police)
n. 监视, 监督
[电] 侦测
1. The city installed cameras for better surveillance in public areas.
该城市在公共区域安装了摄像头以增强监控。
2. The company uses surveillance to ensure the safety of its employees.
该公司使用监控以确保员工的安全。
3. Many people are concerned about privacy issues related to surveillance.
许多人担心与监控相关的隐私问题。