I'm surprised. I knew she was a bit dotty, but I didn't think it was that serious.

真吗？我知道她有点神经，不知道有那么严重。

' She's dotty as a doughnut, George thought.

’她像个甜甜圈一样神经，治想。

They seemed to have gone completely dotty, all four of them.

他们似乎已经完全疯了，他们四个。