How come humans speak so many languages?

为什么人类会说这么多种语言？

youdao

It would be too diffused to include so many languages in the beginning.

它将会过于分散，以包括这么多的语言开始。

youdao

China has very many dialects as well as the world has so many languages.

就像世界有许多种语言一样，中国有许多种方言。

youdao

because of the fact that I've taken so many languages.

因为我学了很多门语言。

选择国际学的理由 - SpeakingMax英语口语达人

To find out whether anyone could really learn so many languages, Mr Erard set out to find modern Mezzofantis.

ECONOMIST: What makes some people learn language after language?

Writing for The Atlantic, anthropologist Sarah Kendzior bemoans the fact that so many languages aren't represented by Google.

CNN: Bonjour Google! Gmail adds auto-translation

Many of the Jews who came to Africa were so successful because they were forced to learn many languages, and they were the only ones who could communicate with African ostrich farmers, hunters and traders as well as European governments and businesses.

FORBES: Magazine Article