四分之一的学生报告说，在课上使用数码设备导致他们的成绩变差。

A quarter of students report that their use of digital devices during class causes their grades to suffer.

youdao

四分之一的学生报告说，在课上使用数码设备导致他们的成绩变差。

A quarter of students report that their use of digital devices during class causes their grades to suffer.

youdao