e in shock. Then the softball coach shouted out, “Does anyone know CPR?”РCPR is a lifesaving technique. To do CPR, you press on the sick person's chest so that blood moves through the body and takes oxygen ans. Without oxygen, the brain is damaged quickly.РAmazingly, Taylor had just taken a CPR course the day before. Still, she hesitated. She didn't think she knew it well enough. But when no one else came forward, Taylor ran to Paris and began doing CPR. “It was scary. I knew it was the difference between life and death,” says Taylor.РTaylor's swift action helped her teammates calm down. One girl called 911. Two more ran to get the school nurse, who brought a defibrillator, an electronic device(器械) that can shock the heart back into work. Luck stayed with them: Paris's heartbeat returned.