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n.圆钮定位法；v.扣住，系住( button的现在分词 )；扣…的钮扣；用钮扣扣上； 英英释义： button[ 'bʌtniŋ ]n.a round fastener sewn to shirts and coats etc to fit through buttonholesan electrical switch operated by pressing"the elevator was operated by push buttons"同义词：push buttonpushany of vari
