语言学是研究语言的,包括语言体系、言语机制、言语活动和话语。不懂外语的人可以研究本族语。有不少知名语言学家是本族语专家,他们对本族语的精湛研究,为语言学做出了应有的贡献。懂得外语的人不仅可以研究本族语,而且可以研究外语,特别可以研究双语或多语现象。更多的知名语言学家是通过对本族语、外语和双语现象的卓越研究而对语言学做出其贡献的。语言学越来越重视双语研究,通过双语 Linguistics is the study of language, including the language system, speech mechanism, speech activities and discourse. People who do not speak a foreign language can study the native language. There are many well-known linguists are native speakers, their superb study of native languages, made due contributions to linguistics. Those who know a foreign language can not only study the native language, but also study foreign languages, especially bilingual or multilingualism. More reputable linguists make their contribution to linguistics through their excellent study of native, foreign and bilingual phenomena. Linguistics increasingly focuses on bilingual research through bilingualism