I'd be happy to show you around, to help you get reacquainted with L.A. Cora: I was only eight years old when my family moved away, so I have a lot of catching up to do.
" To get reacquainted" means that you are going to try to become familiar again with someone that you knew a long time ago, or some place that you were in a long time ago, and that is the case with Cora.
“To get reacquainted” 的意思是你要试着熟悉很久以前认识的人, 者很久以前到过的地方,Cora就是样。