求翻译：民歌是劳动人民在社会实践中口头创作的歌曲。它在我国有着悠久的历史,深深地扎根于社会和民间,是我国各族劳动人民的集体创作,并在流传过程中不断地经过集体的加工，是他们表达自己的思想感情、意志、愿望，按照自己的审美习惯和喜闻乐见的方式共同创造和发展的一种艺术形式，是劳动人民集体智慧的结晶。是什么意思？

Folk songs are songs of working people in the social practice of oral. It has a long history in our country deeply rooted in social and civil, is the collective creation of the working people of all ethnic groups in China, and in the spreading process through collective processing them to express th