Definition
to agree to an offer that another person has presented
接受提议／帮助
I decided to take him up on the job offer.
我决定接受他的工作邀请。
She invited me to see the new movie, and I'll take her up on that.
她邀请我去看新电影，我会接受她的邀请。
If you can help me move, I'd be happy to take you up on that.
如果你能帮我搬家，我很乐意接受你的帮助。