re·ju·ve·nate /rɪˈʤuvəˌnet/
  (vt.)使年輕,使復原,使恢復精神(vi.)返老還童,復原
  re·ju·ve·nate /rɪˈʤuvəˌnet/ 動詞
  Re·ju·ve·nate v. t.  To render young again.
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  rejuvenate
       v 1: cause (a stream or river) to erode, as by an uplift of the
            land
       2: develop youthful topographical features; "the land
          rejuvenated"
       3: make younger or more youthful; "The contact with his
          grandchildren rejuvenated him" [ant: age]
       4: return to life; get or give new life or energy; "The week at
          the spa restored me" [syn: regenerate, restore]
       5: become young again; "The old man rejuvenated when he became
          a grandfather"