这是个很复杂的问题,真的要聊聊三天三夜也聊不完的 地道的意译英文应该怎么讲?

It's really a complicated issue that takes days and days and days to go through.

这个语境中的"问题"翻译成issue，比problem或question之类来得正确 、地道。

this is a very complicated problem, we can spend three days talking about it and still not able to reach a conclusion.