College isn't actually heaven. Before I went to college,I thought once I left high school,it would so cool.And my teachers also said high school was the toughest period for students.But now I can feel it's not really true. College is like a small society ,where you can meet a lot of different kinds of people.You should also study hard,but just now by the ways used in your high school.In China,the college entrance examination is the most important for high school students.So most students only study aiming to get high grades.And in college,you should not study like that. However,many good students become upset in college,some of which lose interest in study or become addicted to games.If living like that,they cant get the expected results eventually. College also isn't the end for students,and learning should never end.We call that"lifelong study".When we have enough time,we should read more books,make more friends,and grow our mind wiser. As long as we work on every step very carefully,we won't have a bad career.