fit·ful /ˈfɪtfəl/
  (a.)斷斷續續的,一陣陣的,間歇的
  Fit·ful a.  Full of fits; irregularly variable; impulsive and unstable.
     After life's fitful fever, he sleeps well.   --Shak.
  -- Fit*ful*ly, adv. -- Fit*ful*ness, n.
  The victorious trumpet peal
  Dies fitfully away.   --Macaulay.
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  fitful
       adj 1: occurring in spells and often abruptly; "fitful bursts of
              energy"; "spasmodic rifle fire" [syn: spasmodic]
       2: intermittently stopping and starting; "fitful (or
          interrupted) sleep"; "off-and-on static" [syn: interrupted,
           off-and-on(a)]