英语翻译

关于sabbatical这个词的意思,书上这么写：n.a period,often one year in each seven,allowed with pay,especially to a university teacher when he has no ordinary duties and may travel and study请先翻译,然后帮我分析下语法结构,这句话好乱
【一段时间,经常是1年,每个周7天,允许带薪,特别是大学老师,当他没有正常职责,并可能去旅行或者学习】
sabbatical adj.休假的,公休的
n.学术休假
可数名词(大学教师等的)休假,公休假 A sabbatical is a period of time during which someone such as a university teacher can leave their ordinary work and travel or study.
一个学术休假,是只一段时间,在这段时间中,例如一个大学老师可以丢下他正常工作去旅游和学习.
He took a year's sabbatical from the Foreign Office...他向外交部请了一年的假.
He's been on sabbatical writing a novel.他一直在休假写一部小说.