| 单词 | surveillance |
| 释义 | surveillance surveillance /səˈveɪ.ləns/ aep /sɚ-/ noun [U] ► F0 the careful watching of a person or place, especially by the police or army, because of a crime that has happened or is expected: » The police have kept the nightclub under surveillance because of suspected illegal drug activity.» More banks are now installing surveillance cameras.Thesaurus+: ↑Using the eyes , ↑Eyesight, glasses and lenses , ↑The eye and surrounding area , ↑PerceptiveThesaurus+: ↑Relating to detection and solving crimes |
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