might·i·ly /ˈmaɪtḷi/
  (ad.)強烈地,非常地
  Might·i·ly adv.
  1. In a mighty manner; with might; with great earnestness; vigorously; powerfully.
     Whereunto I also labor, striving according to his working, which worketh in me mightily.   --Col. i. 29.
  2. To a great degree; very much.
     Practical jokes amused us mightily.   --Hawthorne.
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  mightily
       adv 1: powerfully or vigorously; "he strove mightily to achieve a
              better position in life"
       2: to a great degree; "rejoiced mightily at the news"