keyed up /kiːd ʌp/

• 1.  

  ADJ（形容词） If you are keyed up, you are very excited or nervous before an important or dangerous event. 激动万分的; 紧张不安的 [v-link ADJ]

  例：

  I wasn't able to sleep that night, I was so keyed up.

  那一夜我无法入睡，我太激动了。