surveillance

英文解釋：

名詞 surveillance:

1. close observation of a person or group (usually by the police)

字典網

相關句子：

1. Detectives kept the quarry under surveillance for weeks.
   偵探們監測那個目標已有好幾個星期了。
2. The act or a period of observing; surveillance.
   觀察; 警戒觀察或監視的行為或時間
3. The act of observing closely or the condition of being closely observed; surveillance.
   密切注視密切注視的行為或被密切注視的狀態; 監視