Ключевые слова: 911, accident, aid, alarm, ambulance, assist, background, business, button, call, closeup, communication, computer, concept, crime, crisis, danger, electronics, emergency, enter, finger, fire, gray, hand, help, icon, internet, key, keyboard, laptop, macro, need, network, notebook, police, problem, red, safety, services, sign, sos, symbol, technology, trouble, urgency, urgent, word,