Last week, after the classes at night, when all of us were gone, the fans didn't be closed, and the school secutity saw it and told it to our teacher, so next morning all of us were criticized. Because we are not the last one to leave, we complained it, but our teacher told us we are classmates, this class is made up of us, we cannot leave anyone alone, everybody have responsibility to make our class better.

  After a long time thinking, I understand my teacher's meaning.Although be responsible for others faults doesn't make any sense, we should remind our classmates to close the fans,it is not only for the person, but also the class. A class will become perfect when the classmates in it try their best to help each other. Even if all the people got good achievement at study, this class won't be good if they do not help each other.

  Like NBA, if the players in a team just care themselves, this team have no possibility to become a good team , everyone try their best to help their teammates.

  If we want to be a good class, we must make it. Let's make up our mind and finish this work.