尽管她很有天赋，但因为工作表现不佳，她被看作是个未能发挥潜力的人。

Despite her talent, she was seen as an ___underachiever due to her poor work performance.

尽管他很聪明，但总是考试不及格，老师说他是个成绩不佳的学生。

Although he's very smart, he always fails exams - the teacher says he's an ___underachiever.