优等生

例句：

1. 1. He is atop student who always performs well inexams.
   他是一名成绩优秀的学生，考试总是表现优异。
2. 2. She is a topscholar who has won numerous awards for herresearch.
   她是一名杰出的学者，因其研究而多次获得奖项。
3. 3. Top students often receive extrahelp from their teachers to improve theirperformance.
   优秀学生通常从老师那里获得额外的帮助来提高他们的学习成绩。