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=? native language是什么意思? 请问A small number of people tend to choose the expression “mother tongue”when they(speak of)their native language 填use 为什么不可以?. first language 和 native language 的区别? official language=native language么 native language该怎么翻译恰当 mother language与native language有什么区别?英语 请问connotational nature of language是什么? 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 英语翻译StereotypingThe stereotyping of Native American peoples continues unabated into the new century and,if teachers and administrators are not aware and vigilant,will persist in our schools.Such stereotypes concern:* Language--Native American By playing with the native boys and girls,one can______a lot of language.A.pick up B.set up C.build up D.put up选什么?为什么? By playing with the native boys and girls,one can______a lot of language.A.pick up B.set up C.buildup D.put up 选什么?为什么? native _______(speech) of English the making of a native native language 和mother tongue的区别是什么? native language 和mother tongue有什么区别吗? Looking for a playmate whose native language is English GMAT 报名时native language没有chinese是不是选other?