treadwheel
踏車
Tread·wheel n. A wheel turned by persons or animals, by treading, climbing, or pushing with the feet, upon its periphery or face. See Treadmill.
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tread-wheel
n : a mill that is powered by men or animals walking on a
circular belt or climbing steps [syn: treadmill, treadwheel]
treadwheel
n : a mill that is powered by men or animals walking on a
circular belt or climbing steps [syn: treadmill, tread-wheel]