go back to (something)

When someone is teaching something, explaining something, or telling a story, you can use the phrase "go back to ___". This means to repeat or give more detail about part of the explanation or story.

For example:

Can you go back to what you were saying about Mike getting arrested? How did that happen?

I asked her to go back to the part about DNA replication, but she said she didn't have time to explain it again.

This phrase appears in these lessons: