All Y chromosomes in existence today are descended from a single ancestor's who is thought to have lived about 140,000 years ago.

现在存在的所有 Y 染色体都来自于一个被认为生活在大约14万年前的同一祖先。

youdao

Modern humans have lived as hunter-gatherers for more than 90 percent of their existence as a species.

作为一个物种，自从出现以来，现代人类90%的时间是以狩猎者-采集者的方式生存。

youdao

For most of the species's existence, humans lived in small foraging bands that had little material surplus and therefore enjoyed a relatively egalitarian existence.

相对于绝大多数物种的存在方式而言，人类生活在一个很小的狭长地带，那里几乎没有剩余食物，因此可以以相对平等的方式生存。

youdao

But on the other hand these advances have also come at a cost. And in this story there's also a sense of longing for the freedom of life in the wild--the innocent, simple, uncomplicated life lived day to day without plans, without toil, in harmony with nature Edenic a somewhat Edenic existence.

但是，换个角度来看，人类付出了代价,才得到这些优点，在这部史诗中，同样存在着,对一种纯真，简单，纯粹生活的向往,每天生活中没有计划，辛劳，与自然和平相处,就像以前的。

耶鲁公开课 - 旧约导论课程节选

The Dayaks once lived a nomadic existence in the island's vast forests.

ECONOMIST: Indonesia

While Pope Emeritus Benedict lived a secluded life inside the Vatican (and plans to live an even more secluded existence in the former convent which is being prepared as his new home in a corner of the Vatican Gardens), Pope John Paul II lived a more gregarious existence, often inviting personal guests to attend his early morning mass and to share his breakfast.

BBC: Who, What, Why: What does a pope do?

For most of the species's existence, humans lived in small foraging bands that had little material surplus and therefore enjoyed a relatively egalitarian existence.

ECONOMIST: Your parents were right. Patience is a virtue