spur-of-the-moment

例句：

1. 1.She decided to go on a shopping spree after hearing about the sale.
   她听说有打折活动后决定去购物。
2. 2. The decision was made in a spur-of-the-moment meeting.
   这个决定是在一次临时会议上做出的。
3. 3. He gave a spur-of-the-moment hug to his friend before leaving.
   他临走前给了朋友一个即兴的拥抱。