Definition (缺席)
A period of authorized absence from work or studies, granted by an organization.
准假（经有机构团体批准的暂时离开工作或学习）
She applied for an unpaid leave of absence due to a family emergency.
她因家庭紧急情况申请了无薪休假。
He requested a semester-long leave of absence from the university to complete his research.
他向大学申请了一个学期的休假以完成他的研究。
The company approved his request for a parental leave of absence so he could care for his newborn.
公司批准了他的育婴假申请，以便他照顾新生儿。