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Any of various types of cable, wire, etc., by which a signal is sent; (Diving) = "lifeline".
Mid 19th century; earliest use found in Waldie's Select Circulating Library.
雅致网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。