ret·ro·spect /ˈrɛtrəˌspɛkt/
  回顧,追憶,回溯(vi.)(vt.)回顧,追憶
  Re·tro·spect v. i.  To look backward; hence, to affect or concern what is past.
     It may be useful to retrospect to an early period.   --A. Hamilton.
  Re·tro·spect, n. A looking back on things past; view or contemplation of the past.
     We may introduce a song without retrospect to the old comedy.   --Landor.
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  retrospect
       n : contemplation of things past; "in retrospect"
       v : look back upon (a period of time, sequence of events, etc.);
           remember; "she reviewed her achievements with pride"
           [syn: review, look back]