Natural language, speech, and voice are going to be fundamental to the changing UI, and we have to invest.

自然语言、语音和声音将是不断变化的用户界面的基础，我们必须进行投资。

It is not a natural language.

它不是自然语言。

Search engines want natural language content.

搜索引擎想要自然语言内容。

A natural language processing and engineering tool.

一个自然语言处理和引擎工具。

English is the natural language of the human being.

英语本来就是合乎人性的语言。