Examples:

• Although Jane had always excelled in school, she felt like a babe in the woods when she began attending college.
• Bill is a babe in the woods when it comes to dealing with plumbers. As a painter, Mary is fine, but she's a babe in the woods as a musician.
• She was a babe in the woods where the stock market was concerned.
• We’re still babes in the woods when it comes to computer technology.