More importantly, in high school, our teacher explained almost every word and text, but our new teacher won't explain it in as much detail as the high school teacher.

In high school, our teachers almost always explain word for word, but our new teachers don't explain in detail like high school teachers.

In high school, our goal is to be admitted to a famous university. ?

In high school, our goal was to be admitted to a famous university.

But in college, we not only study, but also build relationships with students and get along well with others.

But in college, we should not only study, but also establish friendly relations with students and get along well with others.

Although our lifestyle has changed a lot, we still need more self-control and self-awareness in college.

Although our lifestyle has changed a lot, we need more self-control and self-awareness in college.