The U.S.Congress has set February 18, 2009 as the last date that analog airwaves will be used for TV broadcasting.是什么意思_The U.S.Congress has set February 18, 2009 as the last date that analog airwaves will be used for TV broadcasting.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句