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Another invention of interest was the graphophone, an ancestor of the phonograph, which used wax records similar to those we know today. 據(jù)說到了貝爾的晚年,電話已十分普及,他總是受電話的干擾,因?yàn)殡娫掆徔偸谴驍嗨脑囼?yàn)。