本文和大家分享的口语表达是：be up for it。这个口语表达的意思是be ready to do something，即“准备好做某事”。
- It's a long walk. Are you up for it?
- After a long day at work I wasn't really up for a party.
- We're going mountain climbing tomorrow if you're up for it.
- It's a big challenge and I'm up for it.
- - Would you be up for going for a run with me after dinner?
- OK, I'm up for it. I've gained some weight lately, and I'd like to get some exercise too.