1. Three mornings and one night in college refers to the collective reason why students have to take part in morning reading and running for three mornings during college, so as to improve their physical ability and physical requirements through morning exercises.

2. One night is studying at night. You should study at night for a long time to improve your schedule. During college, students should take part in morning reading and morning running for three days, and improve their physical ability and collective rationality of physical requirements through morning exercises. You should study at night for a long time to improve your schedule.