劍橋詞典abbreviation for closed-circuit television : a system that sends television signals to a limited number of screens , and is often used in shops and public places to prevent crime 閉路電眡（closed-circuit television的縮寫） CCTV cameras 閉路電眡攝像機(jī) The whole incident was captured on CCTV. 整個事件被閉路電眡攝像機(jī)拍攝了下來。 返回 CCTV