in a fog

adj. 糊里糊涂(不知道发生什么事)

例句与用法：

I didn't vote for her because she always seems to be in a fog.

我没有投她的票，因为她好像总是头脑不清。

In a fog everything looks vague.

在雾中一切东西都显得模糊。

I was really in a fog after the exam.

考完试后，我真的感到稀里糊涂。

详细释义：

困惑的

The boy is in a fog about his school work.

那男孩完全搞不懂他的功课。