单词 | treadmill |
释义 | treadmill /tred"mil'/, n. 1. an apparatus for producing rotary motion by the weight of people or animals, treading on a succession of moving steps or a belt that forms a kind of continuous path, as around the periphery of a pair of horizontal cylinders. 2. an exercise machine that allows the user to walk or run in place, usually on a continuous moving belt. 3. any monotonous, wearisome routine in which there is little or no satisfactory progress. [1815-25; TREAD + MILL1] |
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