He fell head over heels in love with her the moment they met.

他們相遇的那一刻，他就深深地愛上了她。

They are still head over heels for each other after twenty years of marriage.

結婚二十年後，他們仍然深愛著彼此。

He was head over heels in debt after his business failed.

他的生意失敗後，他完全陷入了債務。

The children were head over heels with excitement about the trip to the amusement park.

孩子們對去遊樂園的旅行欣喜若狂。