When a person is h or suddenly becomes ill, people give him immediate care. We call it first aid. When there is a sudden s, time is very important, so first aid plays a very important role. Immediate action is necessary when someone loses lots of b or when b stops for a short time.

    Everyone should know something about how to care for a person with a sudden illness. Even a small injury(损伤)can be very dangerous. And it may result in(导致) d, so everyone should know something about first aid.

    When first aiders face a sudden situation, they must be able to keep calm and organize other people to help. He or she must know how to c blood and take care of injuries. Knowing how to move the injured without causing more injuries is also very i .

    In our country, hundreds of people die in traffic a every year because most people don't have first aid knowledge. If more people know about first aid, more lives could be saved. We may face a sudden situation anywhere. One day somebody from our family may get hurt or suddenly become ill. If we don't know anything about first aid, they may get into t. But if we know something about it, we o can do something for them right away.