本文主要论述了方言与共同语的关系，并从文化的承载、文化的多样性等角度论证了保护方言的必要及在该问题上我们应采取以双言分层治之的对策；
This paper mainly expounds the relation between dialects and the common language , and analyses the necessity of protecting the dialects from the angles of the bearing capacity and the multiformity of culture .
言治