linguistic theory

例句：

1. 1. Linguistic theoryhas been a hot topic in the fieldof language studies for decades.
   语言学理论在语言研究领域几十年来一直是热门话题。
2. 2. Thedevelopment of linguistic theory hasgreatly influenced the teaching methods of modern languageeducation.
   语言学理论的发展极大地影响了现代语言教育的教学方法。
3. 3. In this paper, we will discussthe application of linguistic theoryin the teaching of English as a foreignlanguage.
   本文将讨论语言学理论在英语作为外语教学中的应用。