You're not right in the head, Mick.

你脑子不清醒 米克。

" Sirius, he's not right in the head, " Hermione pleaded, " I don't think he realises we can hear him."

“小天狼星，他的脑子不正常，”赫敏恳求道，“我想他并不知道我们能听见他的话。”

That's the kind of thing he does. He's not right in the head.

他就是那个样子 脑子不太正常。

If I walk in looking like that, they’ll think I’m not right in the head.

【head】如果我这副模样走进去，他们会认为我脑子不正常。