postponement
  延遲
  Post·pone·ment n. The act of postponing; a deferring, or putting off, to a future time; a temporary delay.
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  postponement
       n 1: time during which some action is awaited; "instant replay
            caused too long a delay"; "he ordered a hold in the
            action" [syn: delay, hold, time lag, wait]
       2: act of putting off to a future time [syn: deferment, deferral]