1. Diglossia refers to the community norms for language allocation across domains.

2. What's the difference between diglossia and bilingualism?

3. What is bilingualism and diglossia?

4. And watching the diglossia movies could promote us listening and speaking ability.

5. Timm, Lenora. 1980. Bilingualism, diglossia and language shift in Brittany. International Journal of the Society of Language, 25:29-42.

6. Main teaching courses were as follows: "Land Resources Management", "Population, Resources and Environmental Economics"(diglossia), "Urban Ecology" and so on.

7. The rest part discusses contact in Xiangxi and Xiangnan mandarin and analyses the concrete expression of contact in the form of borrowing, withering, mix, diglossia and so on.