把（文中的词）按屈折变化形式（或异体形式）进行归类the process of reducing the different forms of a word to one single form, for example, reducing "builds", "building", or "built" to the lemma "build"
Lemmatization is the process of grouping inflected forms together as a single base form. 按屈折变化形式进行归类指的是将屈折变化的各种形式归为单一组别的过程。
In dictionaries, there are fixed lemmatization strategies. 在词典中，关于屈折变化形式归类有固定的策略。