求翻译：20世纪80年代，英国语言学家G.Leech（1973）从语言学角度对交际活动中的礼貌原则进行归纳和分类，认为礼貌原则由得体、慷慨、赞誉、谦虚、一致和同情等六个准则构成是什么意思？

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In the 1980s, Britain g.leech linguists (1973) from the perspective of the lingua franca of linguistics activities in the principles of courtesy to summarize and classification that courtesy of decency, the principle of generosity, award-winning, modesty, consistent and sympathy of the six criteria

1980s, the England linguist G.Leech(1973) carries on the induction and the classification from the linguistics angle to in the human relations activity politeness principle, thinks politeness principle by appropriate, generous, the praise, modest, consistent and the sympathy and so on six criterion

In the 1980 of the 20th century, the United Kingdom linguist G.Leech (1973) from the perspective of linguistic communication of politeness principle to summarize and classify, that politeness principles developed by proper, consistent, praise, humility, generosity and sympathy six principles constit

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