tread mill
英
美
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tread mill的英文翻译是什么意思,词典释义与在线翻译:
英英释义
名词 treadmill:
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an exercise device consisting of an endless belt on which a person can walk or jog without changing place
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a mill that is powered by men or animals walking on a circular belt or climbing steps
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a job involving drudgery and confinement