spur of the moment片語

一時衝動、臨時起意、一時興起常用於 on the spur of the moment

We booked the trip on the spur of the moment, with no plan at all.

我們一時興起就訂了這趟旅行，完全沒有計畫。

臨時的、一時衝動的、即興的

It was a spur-of-the-moment decision that she later regretted.

那是個一時衝動的決定，她後來很後悔。