As a girl she had been a model student.

还是女孩的时候她一直是模范学生。

《柯林斯英汉双解大词典》

In one year she turned from a problem child into a model student.

一年内，她从问题儿童变成了模范学生。

《牛津词典》

Thanks to my English teacher, I turned from a problem child into a model student in just one year.

多亏了我的英语老师，我在一年内从问题儿童变成了模范学生。

youdao

The report promoted the T-student model embraced by Hennessy.

NEWYORKER: Get Rich U.

Who would be so sick as to make up a person just to have them die to intentionally hurt and most publicly embarrass this model of a student-athlete?

FORBES: Who's Been Duped? The Manti Te'o Hoax.

Through a casting company, they found a high-school model and an New York University student to play the main characters in photos and videos.

WSJ: Enhanced E-Books: Blowing Up the Book