take it into your head to do something
成語所屬單字head
take it into your head to do something — 慣用語
1. To suddenly decide to do something, especially something others think is stupid.
1.慣用語
釋義
突然決定
To suddenly decide to do something, especially something others think is stupid.
例句
He took it into his head to climb the mountain alone.
She took it into her head to dye her hair green.