N-UNCOUNT (尤指来自警方、军队等组织的)监视,监察Surveillance is the careful watching of someone, especially by an organization such as the police or the army. (尤指来自警方、军队等组织的)监视,监察
He was arrested after being kept under constant surveillance.
在被连续监视了一段时间后,他被逮捕了。
Police swooped on the home after a two-week surveillance operation.
在两周的监视行动之后,警方突击搜查了那栋房子。
Police keep track of the kidnapper using electronic surveillance equipment.