俄语是世界上最复杂、最严谨的语言之一，其复杂性及严谨性就表现在该语言的语法上。俄语属于屈折语，它富于词形变化，一个词往往就有多种语法形式表示不同的语法意义。可以说，俄语中的任何一个词、词组、句子、段落、篇章都不是词汇简单的堆砌，而是由词汇按照一定的语法规 Russian is one of the most complex and rigorous languages ​​in the world, whose complexity and rigor are expressed in the grammar of the language. Russian belongs to the inflectional language, which is rich in inflectional forms. A word often has a variety of grammatical forms to express different grammatical meanings. It can be said that any one of the words, phrases, sentences, paragraphs, and chapters in Russian is not simply piled up by the vocabulary, but by the vocabulary according to certain grammar rules