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Surveillance

Surveillance

(n)
Anh
sɜːˈveɪləns
Mỹ
sɜːrˈveɪləns
Giải nghĩa: Close observation, especially of a suspected spy or criminal.
Nghĩa: Sự giám sát
Không phổ biến
Cách sử dụng từ vựng "Surveillance" trong câu (ví dụ)

The police and the FBI are using drones for surveillance and sting operations.

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It was an integrated military defensive system with watchtowers for surveillance, fortresses for command posts and logistics, beacon towers for communications, etc.

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