闭路电视 bìlùdiànshì closed-circuit television Origin Definitions Defs Strokes Stroke Words Sentences Sents 闭路 閉路 bìlù noun closed circuit an electrical circuit where the path is complete so that energy and signals flow continuously, as in cable systems; opposite of 开路 kāilù电视 電視 diànshì noun television television; TV; electronic system for transmitting moving images and sound