英语词汇“manual switchboard”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	manual switchboard
释义	manual switchboard manual switchboard [′man·yə·wəl ′swich‚bȯrd] (electricity) Telephone switchboard in which the connections are made manually, by plugs and jacks, or by keys.
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