I had no idea the beach was so close.

我不知道海滩原来这么近。

《牛津词典》

I'm so sorry – I had no idea you felt that way.

我很抱歉–我不知道你是那样想的。

《柯林斯英汉双解大词典》

With no idea of what to do for my next move, my hand hovered over the board.

不知道我下一步棋该怎么走，我的手在棋盘上方举棋不定。

《柯林斯英汉双解大词典》

Most of the people who wrote the books had no idea at all where the Canadian Yukon Territory was.

VOA: special.2009.02.04

Or whether or not they had no idea what they were doing, and they've given themselves over to this process.

还是说诗人并不完全理解自己写的文字，而是在创作过程中完全超然忘我。

普林斯顿公开课 - 人性课程节选

I mean, they have no idea how hard we work, and look at this gigantic split infinitive, to dramatically help.

他们不知道我们有多么努力地工作，注意到这之间的巨大鸿沟，会有很大的帮助。

麻省理工公开课 - 固态化学导论课程节选

He said he had no idea who was spreading the false rumours and damaging his business.

BBC: Social media slurs damage Planet Spice takings

It seemed to work, but Sanders had no idea whether the arrangement was normal or bizarre.

NPR: Excerpt: 'When Everything Changed'

Plant manager Will Lejean(ph) says he has no idea when things will be up and running.

NPR: Hurricanes Deal Sugar Industry a Serious Blow