A text display device of preferably pocket size is associated with seats of an audience hall or with a radio or television receiver or record player permitting a listener to read out text portions of a score (e.g. opera) as they are being sung or spoken, to improve the total artistic ...
阅读理解 Music is an international language.The songs that are sung or played by instruments are beautiful to all people everywhere. Popular music in America is what every student likes.Students carry small radios with earphones and listen to musi