The traditional methods and theories are based on Structuralism and historicalcomparativelinguistics.
传统理论和方法是结构主义语言学和历史比较语言学。
2
Saussure s structural linguistics theory is based on inheriting and criticizing historicalcomparativelinguistics, and is mainly embodied in his youth.
索绪尔的结构主义语言学理论是在继承和批判历史比较语言学的基础上建立起来的。
3
Comparativelinguistics is a branch of historical linguistics that aims to study the relationships or correspondences between two or more languages and especially the differences they have.