-可修编-1丄anguageisasystemofarbitraryvocalsymbolsusedforhumanmunication
Designfeaturesrefertothedefiningpropertiesofhumanlanguagethatdistinguishitfromanyanimalsystemofmunication
Arbitrarinessrefersthatthereisnologicalconnectionbetweenalinguisticsymbolandwhatthesymbolstandsfor(meaningandsounds)
Dualitymeansthepropertyofhavingtwolevelsofstructures,suchthatunitsoftheprimarylevelareposedofelementsofthesecondarylevelandeachofthetwolevelshasitsownprinciplesoforganization
Creativity(productivity)meanslanguageisresourcefulbecauseofitsdualityandrecursiveness
Displacementmeanslanguagecanbeusedtorefertocontextsremovedfromtheimmediatesituationsofthespeaker
Culturaltransmission:languageisnotbiologicallytransmittedfromgenerationtogeneration
Thedetailsofthelinguisticsystemmustbelearnedbyeachspea