2 sentences

1. 九月是学生返校的季节。

   Jiǔ​yuè shì xué​sheng fǎn​xiào de jì​jié.

   September is the season for students to go back to school.

   Source: Dong Chinese Dictionary

2. 暑假结束后，学生们纷纷返校。

   shǔ​jià jié​shù hòu, xué​sheng men fēn​fēn fǎn​xiào.

   After the summer vacation ended, students returned to school one after another.

   Source: Dong Chinese Dictionary