Ключевые слова: accident, beware, cantonese, caretaker, carpet, caution, china, clean, cleaner, color, danger, day, falling, floor, front, glass, human, illustration, image, indoors, information, isolated, lobby, men, mop, nobody, people, plastic, port, prevent, remote, repairing, safety, sign, slippery, stationary, stick, symbol, tiled, view, warning, washing, wet, white, yellow,