absence rate

例句：

1. 1.The absence rate of the students in the exam room has increased significantly.
   考试室里学生缺席率显著增加。
2. 2. The company's absence rate is a concern for management.
   公司的缺勤率是管理层的担忧。
3. 3.The teacher noticed that the absence rate had dropped after the new policy was implemented.
   老师注意到新政策实施后缺勤率下降了。