Ключевые слова: 20, black, blue, car, careful, caution, circle, cloudy, danger, drive, fast, highway, hour, kilometers, law, limit, limitation, maximum, miles, pole, police, red, reflective, regulation, restrict, restriction, road, roadsign, round, rule, safe, safety, sign, sky, slow, speed, speeding, street, symbol, traffic, transport, transportation, twenty, vehicles, warning, white,