介词为什么不用in而是at?She was studying hard at the university.在大学里.不

Susie was studying at the university.She learnt to be indepe She majored in math when she was at the university 的意思 At that time,he was studying in ( ) university.And it was a what are the rules at your school为什么用介词at不用in 新概念4里的问题L6里有句话At the international level,.这里为什么介词用AT不用in 或on 请教在英语里说住在什么什么栋几号房,为什么要用介词in而不用at? university 用介词in 还是at? at university和in the university There was a traffic accident(at the end)of the road .为什么不用in She was in her first year at university coming home for a ho 1.The soldier was wounded___the leg中为什么填on而不用in,at或under 1.At that time,he was studying in_______ university.And it w