三级换档键
/ɔːltˈɜːnət/
n
English: alternate: level 3 select · 三级换档键
English · alternate: level 3 selectEspañol · alternado: selección de nivel 3Français · alternative : sélection du niveau 3
释义：To generate a third character or a third function assigned to a key, the user depresses the alternate key followed by the desired character or function key.