称谓语是社会语言学研究领域中不可或缺的一个议题，而亲属称谓是称谓语中重要的组成部分。
Appellation is an integral research topic of social linguistics and kinsfolk appellation is the important component of appellation.
这本书涵盖了第二语言的研究，包括社会学，心理语言学和语言的角度等一系列领域。
The book covers a range of areas of second language research including sociolinguistic, psycholinguistic, and linguistic perspectives.
研究课题涉及社会语言学、语篇分析，英语语言教学等领域。
His research areas involve sociolinguistics, discourse analysis, and teaching of the English language.
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