Just like with the police

You must use real words and be very descriptive when going over your testimony with the DA, and also when you actually testify. You have to say penis, vagina, licked, specifically where you were touched, etc. It's really hard and upsetting. You won't want to go into detail but will have to. The thing to remember is you've already made it through this once when being interviewed by the police. You can do it, it's unpleasant but doable. Once you've testified you never have to describe it again if you don't want to, and that's a comforting thought!