《英语语言学教程》(戴伟栋+何兆熊编)
1. Language can be generally defined as a system of arbitrary vocal symbols used for human communication. Language is a system. Systematic---- rule-governed, elements in it are arranged according to certain rules; can’t be combined at will. e.g. *bkli, *I apple eat.
1. Language can be generally defined as a system of arbitrary vocal symbols used for human communication. Language is a system. Systematic---- rule-governed, elements in it are arranged according to certain rules; can’t be combined at will. e.g. *bkli, *I apple eat.

日语
韩语
法语
德语
西班牙语
意大利语
阿拉伯语
葡萄牙语
越南语
俄语
芬兰语
泰语


