surveillance
in Vietnamese Quan sát, giám sát
BrE /səˈvailəns/ AmE /sərˈveɪləns/
noun en → vi
Quan sát, giám sát
the act of watching someone or something, especially secretly and for a long time
- surveillance of somebody/something
Collocations surveillance camera · surveillance system
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The police have put the suspect under surveillance.
Cảnh sát đã đặt nghi phạm dưới sự giám sát.
An ninh, bảo vệ
the act of watching and controlling a place or area to prevent crime or unauthorized access
- surveillance in/around somewhere
Collocations security surveillance · closed-circuit television (CCTV) surveillance
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The building has 24-hour security surveillance.
Tòa nhà có hệ thống giám sát an ninh hoạt động suốt 24 giờ.