Nida's Functional Equivalence theory mainly focuses on the accuracy and equivalence of function between two languages instead of the similarity of language forms.

奈达的功能对等理论主张让译文和原文在功能上对等，而非简单的形式对等。

Therefore, this thesis makes a comparative study of the three Chinese versions of Great Expectations in the light of Nida's functional equivalence theory.

因此对该作品的翻译研究对整个文学翻译研究有着一定的实用价值。