day re·lease
noun/ˌdeɪ rɪˈliːs/
/ˌdeɪ rɪˈliːs/
(British English) [uncountable]- a system of allowing employees days off work for education
（职工）脱产学习，脱产进修制度， - time off for study on day release
请假脱产学习的时间 - a day release course
脱产进修课程
- time off for study on day release