sat up and take notice

• v. 突然注意起来

例句

用作动词 (v.)

1. He pricked up his ears when they mentioned the salary.
   当他们提到工资时，他立刻注意起来。
2. I purposely kept up the argument till it attracted the attention of all passengers.
   我故意和他辩论了很久，惹得全车厢的人都注意起来。