,特别是里面的语法错误!
There are many students with short-sightness and we have conducted a survey on students' eyesight among primary and middle schools.The result was really worrying.
It shows that 80 percent of the students are shortsighted and only 20 percent of the students have good eyesight.1 percent of them were once shortsighted and recovered after adjust .Some of them won't have short-sightness because of their genes.Only 12 percent of them looked out for their eyes' clean and health.
I think it's a really big problem and we should take it seriously.Maybe we can take following measures to protect our eyesight.First we should keep our eyes clean and do reading and writing in a right posture.Parents should take care of students' eyes too.For instance,getting their children's eyes chected regularly by a doctor is what they should do.Moreover,school should provide good environment for students ,such as well-lit rooms.