"大学时代"用英文怎么说?缩写是?

大学时代: college days

对大学时代怀伤感
sentimentalize one's college days
昨天将成为他大学时代中的一个愉快而难忘的日子。
Yesterday was to be marked with a white stone during his college days.
她哥哥在大学时代放荡不羁，但他现在行为检点多了。
Her brother sowed his wild oats while he was in college,but now he is a better man.
我常常回忆我的大学时代，那是我一生中最快活的日子。
I often look back on my university days,which were among the happiest of my life.

一般通俗的讲,我们都说college time

college time，era,epoch等

college time