Surveillance

(n.)

the act of carefully watching a person suspected of a crime or a place where a crime may be committed

（对犯罪嫌疑人或可能发生犯罪的地方的）监视

(syn.) obse/rvation

e.g. The police are keeping the suspects under constant surveillance.

警方正对嫌疑人实施不间断监视。

e.g. Surveillance cameras/equipment

监视摄像机/设备

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