As we all know, safety is the most important thing in our lives. Although our parents try their best to prevent us from danger, teenagers have to learn how to protect ourselves.
How can we make sure we are safe? First, we mustn't bring dangerous things such as knives to our school because these things may cause serious problems. Second, it’s dangerous to swim in the river alone, so don’t have a bath in rivers by ourselves without our parents’ permission. Besides, we should be friendly to others so fighting is not allowed. What’s more, make sure to pay attention to the traffic on our way to school or home. We must follow the traffic rules when we go out. Don’t cross the street when the traffic lights are red. Last but not least, if we are in danger, remember to call the police or our teachers for help.
In short, everyone needs to learn how to protect ourselves and stay away from danger.