surveillance

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++sur·veil·lance /səˈveɪləns $ sər-/ noun [uncountable]  1  WATCHwhen the police, army etc watch a person or place carefully because they may be connected with criminal activities 〔对可疑的人或场所的〕监视，盯梢surveillance of 24-hour surveillance of the building 对大楼的 24 小时监视under surveillance They were under constant close surveillance day and night. 他们日夜不间断地受到严密监视。 The suspects were kept under surveillance. 嫌疑犯受到监视。 electronic surveillance equipment 电子监控设备2  when one country watches the military activities of another country to see what they are planning to do 监视，侦察〔指一个国家监视另一个国家的军事行动来判断其动向〕 a surveillance mission 侦察任务 surveillance aircraft 侦察机3  when doctors, health departments etc watch an ill person or watch the development of a disease in a population 监视，监察 〔病人情况或某一疾病在人群中的发展〕under surveillance Diane was placed under psychiatric surveillance. 黛安娜被安排接受精神病科观察。

Examples from the Corpus

surveillance• These cancer surveillance programmes are now widely implemented despite not having been subjected to clinical trial.• Patients with increased oesophageal alkalinisation require careful surveillance because of their increased likelihood of developing complications.• The terrorists had been kept under constant surveillance by our officers.• Banks are installing surveillance cameras to prevent robberies.• Military intelligence maintained its surveillance of black organizational activity to determine the extent of black radicalism.• Police surveillance has prevented us contacting your sister-in-law.• It was reported that the agreement covered missile systems, light armoured vehicles and sea surveillance aircraft.• Television surveillance in public areas should help to make housing developments safer.• This patient was the only case of cancer detected by the surveillance programme.• The men had been under surveillance by customs officers for some time before their arrest.• And even this unobtrusive surveillance might be only a part of her fantasy.kept under surveillance• The suspects were kept under surveillance.Origin surveillance (1800-1900) French surveiller “to watch over”, from sur- ( → SURCHARGE) + veiller “to watch” (from Latin vigil; → VIGIL)

sur·veil·lance nounChineseSyllable  

a police, Corpus the etc when army watch

surveillance
sur‧veil‧lance /səˈveɪləns $ sər-/ noun [uncountable]1. when the police, army etc watch a person or place carefully because they may be connected with criminal activities
    surveillance of
    24-hour surveillance of the building
    under surveillance
    They were under constant close surveillance day and night.
    The suspects were kept under surveillance.
    electronic surveillance equipment
2. when one country watches the military activities of another country to see what they are planning to do:
    a surveillance mission
    surveillance aircraft
3. when doctors, health departments etc watch an ill person or watch the development of a disease in a population
    under surveillance
    Diane was placed under psychiatric surveillance.
     

THESAURUS

■ work that a spy does
   ▪ spying the action of secretly collecting information about a person, country, or organization: Several embassy officials had been arrested for spying.
   ▪ espionage spying. Espionage is more formal than spying: Zakharov was charged with espionage. | The company carried out a campaign of industrial espionage against its main rival. | Double agents are quite commonplace in the world of espionage.
   ▪ surveillance activity in which the police, army, etc watch a person or place carefully because they may be connected with criminal activities: 24-hour surveillance of the building | The police have had him under surveillance (=have been watching him)for months.
   ▪ covert operations secret military activities against an enemy: These planes are used by British Intelligence for covert operations.

sur·veil·lanceBrE /sɜːˈveɪləns/ 🔊NAmE /sɜːrˈveɪləns/ 🔊 noun [uncountable] 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 observation ◆The police are keeping the suspects under constant surveillance. 警方正对嫌疑人实施不间断监视。🔊🔊◆surveillance cameras/equipment 监视摄像机／设备