求翻译：民族中心主义(ethnocentrism)是一种认为自己文化优于他文化的信条。广义上说就是轻视其他群体的成员。美国社会学家孙墨楠（William Graham Sumner）给它下的定义是，“以其个人所属群体为一切事物的中心为出发点来看待事物，对其他所有群体则按照自己的标准把它们分成等级……每个群体都认为只有自己的社会习俗是恰当的，看到别的群体有不同的社会习俗，就会嘲笑。”总之，它是一种主观主义的态度，偏爱本群体的生活方式，以自己的生活方式为标准，用否定的态度，否定或贬低其他民族群体的生活方式和文化成就。是什么意思？

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Ethnocentrism ( ) ethnocentrism that it is a superior to his own culture cultural tenets. Broadly speaking, it is contempt for other members of the group. The American sociologist, Sun the Nan (William Graham Sumner) to it, is the definition of the "in their individual group to which they belong to

Ethnocentrism (ethnocentrism) is a view that their culture is superior to his creed. In broad terms is back on other group members. United States sociologist Sun Monan (William Graham Sumner) under it's definition is, "to their individual groups for centers as a starting point to look at everything,