| 词汇 | closed circuit television |
| 释义 | closed cir·cuit tel·e·vi·sion /ˌ· ·· ˈ···· / also 又作 cctv /ˏsi si ti `vi; ˌsiː siː tiː ˈviː/n [c,u]a system in which hidden television cameras film what is happening in a public place in order to help prevent crime 闭路电视 |
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