native language 和mother tongue有什么区别吗?

first language 和 native language 的区别? native language=? native language是什么意思? native language 和mother tongue的区别是什么? native language 和mother tongue有什么区别吗? official language=native language么 native language该怎么翻译恰当 Mot mother language与native language有什么区别?英语 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和local区别 Looking for a playmate whose native language is English GMAT 报名时native language没有chinese是不是选other? LOCAL和NATIVE的区别 native American 和Native American 有什么区别? you'd better find friends whose native language is English 翻译 Chinese is the native language in China but a ____language in England 改错people in English-spoken countries speak English as their native language