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 閉路電視（closed-circuit television的縮寫） CCTV cameras 閉路電視攝像機 The whole incident was captured on CCTV. 整個事件被閉路電視攝像機拍攝了下來。 返回 CCTV