force·ful /ˈforsfəl, ˈfɔrs-/
  (a.)有力的,強烈的
  Force·ful a. Full of or processing force; exerting force; mighty. -- Force*ful*ly, adv.
  Against the steed he threw
  His forceful spear.   --Dryden.
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  forceful
       adj 1: characterized by or full of force or strength (often but not
              necessarily physical); "a forceful speaker"; "a
              forceful personality"; "forceful measures"; "a
              forceful plan for peace" [ant: forceless]
       2: forceful and definite in expression or action; "the document
          contained a particularly emphatic guarantee of religious
          liberty" [syn: emphatic]