fth

例句：

1. 1. The fifth graders are having a great time at the park.
   五年级的学生在公园玩得很开心。
2. 2. The fifth-grade students are studying English in the classroom.
   五年级学生正在教室里学习英语。
3. 3.The fifth-grade students are preparing for their upcoming exams.
   五年级学生正在为即将到来的考试做准备。