许多人的文化不发达，按照我们的说法，他们是不文明的。但是他们说的语言则不是原始的。

There are many people whose cultures are undeveloped, who are, as we say, uncivilized, but the languages they speak are not primitive.

youdao

你知道，在近现代历史上，哦，具体说从公元前300年开始以来，我们没有任何文明在300年中都没有改变其语言，改变到一种你看不懂的语言。

And, you know, in modern history since, oh, let's say 300 BC, we haven't had any civilization that didn't change the language to where you couldn't read it in a 300-year period.

youdao

你知道，在近现代历史上，哦，具体说从公元前300年开始以来，我们没有任何文明在300年中都没有改变其语言，改变到一种你看不懂的语言。

And, you know, in modern history since, oh, let's say 300 BC, we haven't had any civilization that didn't change the language to where you couldn't read it in a 300-year period.

youdao