Ключевые слова: air pressure, assistant, bicycle, bicycling, bicyclist, bike, biking, brake, business, buyer, buying, commerce, customer, cycle, cyclist, employee, factory, finger, hand, happy, help, helpful, indoor production, job, male, mall department, man, manager, mechanic, mountain, owner, person, producer, profession, repair, repairer, retail, sale, salesman, selling, service, shop, store, technician, tyre, wheel, woman, worker, working, workshop,