但是，它不应该是为了生存的需要。

But, it should not be required for survival.

youdao

许多科学家人文这种行为最初的形成是出于生存的需要。

Such behavioral contagion probably evolved early for survival, some scientists argue.

youdao

西方人逐渐遗忘了一点：对于世界上很多人来说通晓数国语言其实是为了生存的需要。

Westerners tend to forget that for much of the world being polyglot has been a necessity for survival.

youdao

So as it were,we might say, it might be that mere survival or bare bones survival doesn't really give me what matters.

所以我们可以说，仅仅生存下去,肉体的存活并不是我需要的。

耶鲁公开课 - 死亡课程节选

The vast overwhelming majority of people needed to farm land, in order to stay alive.

当时古希腊拥有众多的人口,人们需要农田才能生存

耶鲁公开课 - 古希腊历史简介课程节选