alternate: level 3 select
/ɔːltˈɜːnət/
n
English · alternate: level 3 select中文 · 三级换档键Español · alternado: selección de nivel 3Français · alternative : sélection du niveau 3
意味：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.