have no idea of

基本解释

Have no idea of what it is, who he is, how tolove or how long it will be.
不知道是什么，不知道是谁，不知道如何去爱，也不知道可以爱多久。
edu.sina.com.cn
Right now, we have no idea of the impact of these drug residues or what we can do about them.
目前，我们还不知道这些药物残留会对身体产生什么影响，也不知道该对它们做些什么。
But you have no idea of where each branch, leaf, stem and flower will be a year from now, and if you say you do then you're really only guessing.
但是，你完全不知道一年后每个枝条、叶子、树茎和花朵将会长成什么样子。除了随意猜猜之外你又能说出个什么所以然来呢。

Also,you can monkey around when you feel like doing something, but have no firm idea of what to do.
These unseen lights which shone through them upon your faith were reflections of American efforts to live up to an idea. Those characters could have been no other than products of American tradition.
作为美国式理想的产物,这些难以绘状的光,其实就象征着,你们为了理想,去拼搏和开拓。
耶鲁公开课 - 1945年后的美国小说课程节选
So in the fourth stanza we as readers have no idea where we are or when it is the speaker of the poem imagines himself to be speaking, and it's at this point that something quite strange happens.
所以作为读者，对第四段我们不知道,自己在哪，诗的代言者在哪,什么时候想说话，而且就是在这时非常奇怪的事情发生了。
耶鲁公开课 - 弥尔顿课程节选

Part of the explanation is that most investors have no idea of the bonds' true worth.
ECONOMIST: Japanese bonds