不管有没有人类的影响，生态系统都会随时间演变，因此没有人可以说出夏威夷看起来应该是什么样的。

Ecosystems change over time, with or without the involvement of mankind, so no one can tell what Hawaii should look like.

youdao

事实上，过去的气候变化模式表明，即使没有人类活动的影响，地球的气候几乎肯定会在未来经历剧烈的变化。

In fact, the pattern of climate change in the past reveals that Earth's climate will almost certainly go through dramatic changes in the future even without the influence of human activity.

youdao

那里并没有人类活动的迹象。

Here there is no sign of human activity.

youdao

And he has a theory about early life and perfectly appropriate as far as one can tell of what pre-human form he studied.

他有一个有关早期生命的理论,一般人都会觉得很正常,他研究人类之前的生命形式没有什么不合适。

普林斯顿公开课 - 人性课程节选

Because if you think about it, suicide doesn't change the fundamental nature of the human condition, life followed by death.

因为如果你考虑一下，自杀没有改变人类处境的基本本质，生后即是死。

耶鲁公开课 - 死亡课程节选

But through the course of human history, nobody has ever encountered another group of humans that did not have a language.

但在人类历史的进程中,还没有人曾经遇到过,没有语言的人类族群

耶鲁公开课 - 心理学导论课程节选