You can tack up postcards or invitations and surf the Web with the touch of a finger.The invitation could be RFID-encoded, so tacking it up opens an online RSVP window.是什么意思_You can tack up postcards or invitations and surf the Web with the touch of a finger.The invitation could be RFID-encoded, so tacking it up opens an online RSVP window.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句