But even smaller asteroids could have a significant impact on both natural and human ecosystems too.

但即使再小的行星也会对自然和人类生态系统产生巨大的影响。

And people tend to focus on the kind of narrow technological aspect of all this, but it's part of a far bigger human ecosystem.

人们倾向于关注所有这一切的狭隘技术方面，但它是更大的人类生态系统的一部分。

It remained isolated perfectly untouched by human ecosystem throughout all of history and civilization until a group of Polynesian explorers likely happen to stumble upon it by mere chance sometime during the 13th century.

在整个历史和文明中，它一直处于孤立状态，完全不受人类生态系统的影响，直到 13 世纪的某个时候，一群波利尼西亚探险家偶然发现了它。