单词 | blue box |
释义 | blue box n. An electronic device equipped with a tone pulsator that was formerly used to place free, illicit long-distance telephone calls by mimicking the tones sounded when operators routed such calls. |
随便看 |
英语词典包含135693条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。