英语词汇“speaking tube”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	speaking tube
释义	speaking tube noun : a pipe through which conversation may be carried on (as between persons in different parts of a building)
随便看	cobalticyanic acid cobalticyanide cobaltiferous cobaltine cobaltinitrite cobaltinitrite cobaltised cobaltite cobaltized cobalto cobalto- cobaltocalcite cobaltomenite cobaltous cobaltous cobaltous chloride cobaltous fluoride cobaltous oxide cobaltous sulfate cobalt oxide cobalt pyrites cobalt red cobalt sulfate cobalt ultramarine cobalt violet

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