工作了的人总是羡慕学生们无忧无虑的生活。可他们不知道当个学生有多难。他永远有做不完的作业，考试的压力无处不在，每个人都想得第一名，而且还有补不完的课。最糟糕的是，由于学生们几乎把所有的时间都用于学习，所以根本无法做自己感兴趣的事情。

it's not easy to be a student
people who have finished education often admire students for their carefree life. but they don't know how difficult it is to be a student. he can never finish his homework. furthermore, he has to face the great pressure of examinations. everyone wants to get the first place in exams. and after school, there are also manyextra classes waiting for him. the worst of all is that students can hardly do what they really love to do, for they spend almost all their time on studies.