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Use "treadmills" in a sentence
"Core training doesn't require the big equipment that dominates most gyms, such as treadmills and squat racks."
"The Indian news media have dubbed the event the "Con Games," citing inflated expenses such as treadmills renting at 10 times the usual cost."
"Parents may be surprised to learn that exercise machines such as treadmills pose special risks to toddlers and young children, who account for the greatest percentage of serious injuries."