Through her tears, she said, "You have no idea how much this means to me."

她流着泪说：“你不知道这对我有多重要。”

youdao

Whenever you say something to a person cruel or kind, you have no idea how long the words will stay with them.

每当你对一个人说一些残酷或善良的话，你不知道这些话会在他们心中停留多久。

youdao

If you have no idea about it, consult a dictionary, please.

要是你对这个问题不清楚，请你查字典得了。

《新英汉大辞典》

And you have no idea how meaningful that is to me."

VOA: standard.2010.04.05

Right? That would be an entirely different matter, wouldn't it, because you would have absolutely no idea whether the question was rhetorical or grammatical, right?

对吧，那将会是一个完全不同的情况，难道不是吗，因为你就会完全不知道,这个问句是修辞型的还是语法型的，对吧？

耶鲁公开课 - 文学理论导论课程节选

And what that corresponds to, if you recall, is the idea that in a perfect crystal at zero degrees Kelvin then you have no disorder at all.

如果你们能回忆起来的的话，这就意味着,绝对零度下的完美晶体,一点无序状态也没有。

麻省理工公开课 - 热力学与动力学课程节选

You have no idea what goes on on the other side of the world.

CNN: Ex-Navy sniper killed at Texas gun range

You have no idea if your driver is really qualified to drive so safety is an issue.

FORBES: What Is It Like To Drive For Uber?

You have no idea how much better it would make us feel, how inspiring and comforting, too.

WSJ: An Antidote to Cynicism Poisoning