I can't help but I feel I need to ask you this question.

我觉得很有必要问您一个问题。

普林斯顿公开课 - 国际座谈会课程节选

You use "I can't help but" when you feel helpless, when you want to get something across that needs to happen.

当你觉得无助时，或者当你说明需要做到这件事情的时候，你就可以使用“I can't help but”句型。

I can't help but 课堂 - SpeakingMax英语口语达人

So, also about Max Born, just to give you a little bit of a trivial pursuit type knowledge, he not only gave us this relationship between wave function squared, This is her grandfather, I don't know if you can see from the eyes, I feel like there's a little bit of a resemblance there.

这里有些，关于它的，花边新闻,他不仅带给我们，这个波函数平方的关系,还给我们带来了，他是她的外祖父，我不知道,你们能不能看出来，我觉得,他们眼睛长得很像。

麻省理工公开课 - 化学原理课程节选

And I can't tell you how blessed I would feel.

NPR: Aretha Franklin's Globe-Nominated Performance

I'd like to say to people look, I'll do it as long as I have the energy to do it and when I don't feel I can put as much into it as you like, then I would want to step down.

BBC: Breakfast with Frost

"I don't want to feel like a spoilsport, but I don't know how you can set them off safely given the potential they have to cause fires, " she said.

BBC: Chinese sky lantern blamed for Trowbridge house fire