Ключевые слова: abstract, action, activity, buldozed, bull, bulldoze, bulldozer, cognition, concept, conceptual, construction, define, definition, dig, digging, earth, education, equipment, explanation, frame, heavy, idea, industrial, industry, info, language, learn, letter, machine, machinery, meaning, mining, mover, power, reference, school, shoveling, site, spelling, surface, text, transport, transportation, unloading, up, vehicle, word, writing,