I have no idea …

结构︰

主语＋have no idea…

说明︰

此句型意为“不知道…”。

We have no idea how the birds find their way.
我们不知道这些鸟如何找到它们的路。
I have no idea why he resigned his post.
我不知道他为何辞去他的职务。
We have no idea how to persuade him to give up the idea.
我们不知道如何说服他放弃这个念头。