Generally speaking, engineering students and medical students have more courses and heavier learning tasks than literature and history students. But similarly, all freshmen learn basic courses, and because freshmen need some time to adapt to the new university life, most freshmen's courses will be relatively relaxed.
Sophomore students begin to study professional courses, and every day it is still 8:30- 12 and 2:40-6:00 pm. In addition, an experimental class is added, which is usually arranged from noon 1: 30 to 2: 20 on Friday, so an indirect class is added. Every day is full of classes, and there is no class at night, but there are experimental reports and homework to write. Social practice will be held on weekends.
There are many courses in junior year, except the whole class from Monday to Friday, and the experimental class is added occasionally in the evening. Moreover, most courses in our major are only half a semester, so we have to take exams after staggered classes. The more you study, the harder the exam is. Basically, I spend time writing experimental reports and doing my homework on weekends.