Idiom is an important constituent in the language and culture of a society which reflects the history, geography, social thought, regional belief, and living patterns of a nationality.

成语是一个社会的语言和文化的重要组成部分，它能反映出一个民族的历史、地理、社会观点、宗教信仰以及生活方式等。

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Giving introductions on American geography, culture, history, customs, education systems and other western social and cultural information;

介绍美国文化、地理、历史、习俗礼仪、美中各自的教育系统及其他相关的社会文化知识；

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