no idea
01
不知道, 完全没有头绪
used to express complete lack of knowledge or understanding about a particular topic, question, or situation
例子
No idea, I was out all afternoon.
不知道，我整个下午都在外面。
to have no idea
01
to not know something or be unsure about it
Collocation
例子
They had no idea that the store closed early yesterday.
