礼貌原则是在说话双方互动关系中建立起来的语言交际原则，最终是为语言交际服务的。
The language communication principles set up while concerning of both sides that politeness principle is speaking, serve for language communication finally.
它可以对语篇信息流中的预设信息做出适当调节，从而在不影响语篇连贯性的前提下使语篇合乎语言交际的经济原则。
As such, it ADAPTS the presupposed information in the information flow of discourse, and in so doing renders the discourse consistent with the principle of economy.
重点分析交际中的新词新语的认知过程，说明语言交际中新词新语的使用和理解遵循着语用原则：最佳关联原则。
This paper mainly analyzes the cognitive processes of new words in linguistic communication, which proves the use and understanding of new words should abide by the principle of optimal relevance.
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