It seems like there might be a misunderstanding or typo in your request. Typically, a 25-year-old would not be referred to as a "high school student." However, if you're looking for a translation or interpretation of the phrase "25岁的女高中生" (a 25-year-old female high school student), here it is:

"A 25-year-old female high school student."

If you meant something else or need further clarification, please feel free to provide more details.