学生重点学习某些科目而忽视其他课程学习的现象phenomenon of focusing on some subjects and overlooking others

• 有些中小学在教学中出现了不少“偏科”现象。

  In some middle and primary schools, the teaching often focuses on some subjects and overlooks others.

• 他学习明显偏科。

  He is clearly focusing on some subjects and overlooking others.