Ключевые слова: arm, background, black, cells, clue, correct, detective, discover, eyesight, find, finger, fingerprints, germs, glass, hand, help, hold, holding, human, icon, inspect, inspection, inspector, investigation, job, lens, look, magnification, magnifier, magnify, magnifying, metaphor, object, optical, optics, palm, people, question, research, school, science, search, seek, sign, symbol, tool, view, vision, watch, wrist,