| 释义 |  tread /tred/  intransitive verb (pat trod; pap troddˈen or trod)transitive verbTo set the foot downTo stepTo walkTo trample(of a male bird) to copulate
 nounTo walk onTo press with the foot, eg in threshing or pressing grapesTo trample, crush with the feetTo beat or form (a path, etc)To perform by treading, dance(of a male bird) to copulate withTo oppress (figurative)
 The act or manner of treadingA step or trampA thing or part trodden on, eg on a stepThe part that touches the ground, eg on a shoe or a wheel(the thickness of) the moulded ridged rubber surface of a pneumatic tyre, which has contact with the roadA footprintA trackThe distance between wheels or pedalsThe cicatricula, or the chalaza, of an eggBusiness, trade (see also ety below) (Scot)
 ORIGIN: OE tredan; Ger treten; ON trotha; cf trade treadˈer  noun treadˈing  noun treadˈle or treddˈle  noun intransitive verbA foot-lever for working a machineA pedalThe chalaza of an egg (once thought to be derived from the cock) (dialect)
 To work a treadle treadˈler  noun treadˈling  noun treadˈmill  noun A machine with a continuously moving surface of adjustable speed used for exercising on by running or walkingA cylinder turned by treading on boards on its outside, as formerly by prisonersA mill so workedRoutine drudgery
 treadˈwheel  noun A wheel or cylinder turned by treading outside or insideA treadmill
  tread (or walk) on air  To feel exhilarated tread the boards  To act on stage tread water  To float upright by an action as if of climbing a ladderTo hold back temporarily from making progress (figurative)
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