| 释义 |
closed-circuit television
UK [ˌkləʊzd.sɜ:.kɪt'tel.ɪ.vɪʒ.ən] US [ˌkloʊzd.sɝ:kɪt'tel.ə-] (abbreviation CCTV)
noun uncountable
■a system which sends television signals to a limited number of screens and is often used in shops as protection against thieves 闭路电视（常设置于商店以防窃贼） |