n.双语现象，双重语体(两种语言或一种语言的两种变体并存于一个语言集体中)

Diglossia is a linguistic situation in which two varieties of the same language are used by a community in different social contexts or for different purposes.
双语现象是指一个社群在不同的社会情境或出于不同目的使用同一种语言的两种变体。
In many former colonies, the language of the colonizer and the indigenous language coexist in a state of diglossia.
在许多前殖民地，殖民者的语言与本土语言并存，呈现出双语状态。
The relationship between Standard English and African American Vernacular English can be seen as an example of diglossia.
标准英语与非洲裔美国人日常英语之间的关系可以被视为双语现象的一个例子。
In Switzerland, German, French, and Italian are spoken in different regions, often leading to situations of diglossia with their respective standard and regional forms.
在瑞士，德语、法语和意大利语在不同地区被使用，常常导致各自的标准形式与地区形式之间存在双语现象。
The Arabic language, with its Classical and colloquial varieties, exemplifies a long-standing diglossic situation.
阿拉伯语，以其古典形式和口语变体，典型地展现了一种长期存在的双语现象。
In education, diglossia may occur when students learn a formal version of a language that differs from their everyday spoken variety.
在教育中，当学生学习一种与他们日常口语不同的正式语言版本时，就会出现双语现象。
In some countries, a colonial language like English or French remains the language of administration and higher education, creating a diglossic environment with local languages.
在一些国家，如英语或法语这样的殖民地语言仍然是行政和高等教育的语言，这与当地语言一起形成了双语环境。
Diglossia can lead to a situation where one language variety is perceived as dominant or prestigious, while the other is considered subordinate.
双语现象可能导致一种语言变体被视为主导或有声望，而另一种则被认为是次要的。
The use of Latin in religious ceremonies versus vernacular languages in daily life is a historical example of diglossia.
拉丁语在宗教仪式中的使用与日常生活中的地方语言的使用是双语现象的历史例子。
Within a single country, diglossia might exist if there is a 'high' form of the language used in official settings and a 'low' form used informally.
在一个国家内，如果有一种“高级”形式的语言用于官方场合，而另一种“低级”形式的语言用于非正式场合，那么就可能存在双语现象。