over sb.'s head
1.not understandable不可理解
The lesson today was too hard;it went over my head.今天的课太难,我不懂。
His writings go over my head.他写的东西太深,我理解不了。
2.to a more important person in charge;to a higher official越级报告或请求
The thing was settled over his head.这事没与他商量就处理了。
Going over the head of his editor,the auther appealed to the publisher.作者越过编辑,直接向出版者申诉。