subscribern.签署者；捐献者；订户subscribevt.订阅；签名；支持；捐赠；同意subscribe to a charity向慈善机构捐款subscriber rs terminal用户终端subscriber's protectorsubscriber rs exchange用户交换台subscriber's amplifiersubscribers line noise用户线杂音subscribe the petition在请愿书上签名subscriber's apparatussubscriber line charge用户线路费subscriber access line用户入口线