sociolinguistics

例句：

1. 1.Sociolinguistics is the study of language use in society.
   社会语言学研究语言在社会中的使用。
2. 2. The sociolinguistics researcher found that gender influenced how people spoke.
   社会语言学研究者发现，性别影响了人们说话的方式。
3. 3. This sociolinguistics theory has been proven to be effective in teaching English as a second language.
   这一社会语言学理论已被证明在教授英语作为第二语言时是有效的。