un·wea·ried /-ˈwɪrid/
  (a.)疲倦的,不累的,孜孜不倦的
  Un·wea·ried a. Not wearied; not fatigued or tired; hence, persistent; not tiring or wearying; indefatigable. -- Un*wea*ried*ly, adv. -- Un*wea*ried*ness, n.
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  unwearied
       adj : with unreduced energy [syn: untired, unweary]