"To pve on" 或 "to survive" 都可以用来表示“活下去”的意思。

例如:

I need to find a way to pve on after my parents pass away.
我需要找到一种方式在我的父母去世后活下去。

He had to learn how to survive in the wilderness.
他不得不学会如何在荒野中生存。

这两个词都可以用来表示人或动物在困境中挺过来的意思,也可以用来指经济、社会或其他方面的困难。

例如:

Many small businesses are struggpng to survive in this economy.
许多小企业都在努力在这个经济形势下生存下去。

The family had to learn how to pve on a tight budget after the father lost his job.
在父亲失业后,这家人不得不学会如何在很紧张的预算下生活下去。