It is forbidden to bathe in the river without permission.

Students nowadays should pay more attention to their safety, because social security is not as safe as it used to be. First of all, students need to be more patient and tolerant of others, so that they won't get involved in any fighting inside and outside the school, because injuries often happen.

Besides, swimming alone in the river is also dangerous, especially for students. Accidents are unpredictable, no one will help them, and they don't even know if they are alone.

Besides, it is very important for students to be careful on their way to and from school. As the traffic becomes busy, students must be vigilant and obey the traffic instructions when using the road.

Finally, students can always tell their teachers or contact the local police when they encounter problems. In this way, they can get help as soon as possible and ensure their safety.

This is my original, I hope everyone will adopt it.