求翻译：中学生看电视有好处也有坏处。作为中学生应该自觉控制看电视的时间。看电视可以更多的了解世界，增加自己的知识，多余中学生来说有很大的好处。但是沉迷电视也有坏处，会影响学习成绩和视力。所以我认为应该适量的看电视，这样才能更加有益于中学生的生心发展。是什么意思？

Students watching TV has both benefits and disadvantages. As middle school students should consciously control television viewing time. Watching TV can be more understanding of the world, increase their knowledge, the extra students have a lot of benefits. But indulging in television also has disadvantages, will affect academic performance and vision. So I think it should be the amount of television, the shengxin development so as to more beneficial to the students.