来自程林的问题
【英语翻译Usageis"thataspectofperformancewhichmakesevidenttheextenttowhichthelanguageuserdemonstateshisknowledgeoflinguisticrules"】
英语翻译
Usageis"thataspectofperformancewhichmakesevidenttheextenttowhichthelanguageuserdemonstateshisknowledgeoflinguisticrules"

