We should have life-long learning in the era of Internet, which requires us to continue with study even after graduation.

在互联网时代我们应该学会终身学习，这要求我们即使在毕业后也要继续学习。

A slight error in thought may constitute a life-long regret.

一念之差终身之悔。

There is no cut-short on the way of life-long English learning.

在漫长的英语学习过程中，没有任何捷径可言。

You know I do not want to lose our life-long friendship!

你不要忌恨我啊, 我不想失去你这个一生一世的朋友!

For some, at least, it could be the start of a life-long love affair.

至少对于某些孩子来说，这可能是毕生爱好的开端。