请问native language,official language,second language,foreign language的定义都是什么?在哪本书里能查到?

问题描述:

请问native language,official language,second language,foreign language的定义都是什么?在哪本书里能查到?
要英文正式的定义,我有胡壮麟和陈林华的语言学书,怎么都找不到定义呢

native language本机语言,机器各单元间编码语言 native language【计】 本国语言official language官方语言second languagena language other than the mother tongue that a person or community uses for public c...