Not to put too fine a point on it, I think you are lying.

不客气地说，我认为你在撒谎。

《牛津词典》

Not to put too fine a point on it, the place was an absolute dump.

不用把这个地方想得太好，它简直就是一个垃圾场。

youdao

He was as punctilious about his honour, as fine a horseman and as deep in debt as any of them.

他十分注重自己的名誉，如同一个骑士一样优秀，也和他们一样负债累累。

youdao

Because she was a woman, she could not study at the French Academy of Fine Arts in Paris.

VOA: special.2009.07.12

So, I think if we said we've got melody, we've got theme, we've got bass, we've got a bunch of other stuff in the middle, that's just fine and dandy.

那么,如果说我们听到了旋律,听到主题,听到低音部,听到中间有一堆别的东西,就算令人满意了

耶鲁公开课 - 聆听音乐课程节选

and even go like, you can graduate with a bachelor's in fine arts.

或者你也可以修美术类的本科学位。

在梦想与现实之间 - SpeakingMax英语口语达人

How can the club fine a player for missing training if they are not paying him?

BBC: The year of the little club

Not to put too fine a point on it - was he selling the Euro?

BBC: Soros speaks on Euro

Not to put too fine a point on it, here was a really, really big part.

WSJ: Jeff Daniels | Firmly Anchored | Cultural Conversation by Joanne Kaufman