求翻译：在中学阶段我们一般学习十门左右的课程老师讲授的一般都是基础知识，而大学里每个学期学习内容不同而且内容多，大学一二年纪主要学习公共课程和基础课程，大学三年级主要学习专业知识和部分选修课，大学四年级主要学习专业课和毕业设计以及毕业论文。是什么意思？

In secondary school we generally learn about the course ten teachers are generally taught the basics, and the university each semester learning different contents and contents, University of twelve young main learning courses and foundation courses public, third-year university main learning experti