Zài / xué / xí / shàng / tóng / xué / men / nǐ / zhuī / wǒ / gǎn / chéng / jì / dōu / yǒu / le / tí / gāo

在学习上，同学们你追我赶，成绩都有了提高。

In their studies, the classmates compete with one another, and everyone's grades have improved.