短語詞組短語cordless switch board 無塞繩交換機(jī)cordless s switch board 無塞繩交換機(jī)cordless telephone switch board 無塞繩電話交cordless switch -board 無繩交換臺(tái);翻譯cordless system trunk board 無塞繩式中繼臺(tái) 返回 cordless board