书桌

例句：

1. 1. She sits at her desk and studies for hours every day.
   她每天坐在书桌前学习几个小时。
2. 2. The teacher asked the students to clean their desks before class.
   老师要求学生们在上课前打扫他们的书桌。
3. 3. After finishing his homework, he sat at his desk and began to study.
   完成作业后，他坐在书桌前开始学习。