Their language is of unknown origin and cannot be placed within any standard classification.
他们的语言起源不明，也无法被归入任何标准的类别。
Text classification has become a research focus in the field of natural language processing.
分类是近年来自然语言处理领域的一个研究热点。
Text classification has become a research focus in the field of natural language processing.
分类是近年来自然语言处理领域的一个研究热点。
应用推荐