Gift economies exist in primitive cultures where scarcity is not a problem.

礼物经济在物质不匮乏的远古时期就已经存在。

youdao

This process certainly would be of help to primitive humans, but the problem, of course, is that in the modern world there is very limited advantage of the fight-or-flight response.

这个过程确实对与原始人类有所帮助，但问题是在现代社会中战斗或飞行反应的优势非常的有限。

youdao

Even human cannibals in primitive societies have a problem with a brain disease passed in this way.

在原始社会里，即使是同类相食的人类，也会令一种大脑疾病遗传下去。

youdao

Watauga County Commissioner Perry Yates said the problem isn't Mr. Conway's primitive methods but rather his less primitive ones, like using an oven range in the outdoor kitchen.

WSJ: Ah, Wilderness! Mountain Man vs. the Building Inspector