at college释义：
在大学；在大学读书
例句：
Her eldest boy is at college.
她的长子在上大学。
Their friendship flowered while they were at college.他们的友谊在求学时已根深蒂固。
We had long debates at college about politics.我们上大学时曾长时间地辩论政治问题。
at university释义：
在大学里；在大学学习
例句：
Both their children are at university.
他们的两个孩子都在上大学。
