短语 keyed up 形容一种状态，表示激动万分的、紧张不安的。这个短语常和单词 about 连用。

例句

I'm really keyed up about the show tonight.

You've been keyed up all morning, Clive. You should take some time to relax before your exam.

请注意

短语 the key to something 意思是成就某事的关键。比如幸福的关键 key to happiness 是什么？致富的关键 key to wealth 是什么？

The key to happiness is accepting that you can't change everything.