请教学制问题

请问：下面的这段话中所说的两个完整的学年是不是实际上只有秋季学期和冬季学期，其它的是实习？

The  MBA program requires two full academic years to complete (fall and winter semesters for two years). Students may begin the program in fall semester only. No MBA courses are taught spring and summer terms—students are encouraged to complete internships during this time.

我的理解是：一年中有四个学期，不像国内是两个学期。而这个学校每一学年只在秋、冬学期上课，是不是这样？