ac·cen·tu·al /ækˈsɛn(t)ʃ(ə)wəl, ɪk-/
  (a.)重音的,有抑揚的
  Ac·cen·tu·al a. Of or pertaining to accent; characterized or formed by accent.
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  accentual
       adj 1: of or pertaining to accent or stress
       2: (of verse) having a metric system based on stress rather
          than syllables or quantity; "accentual poetry is based on
          the number of stresses in a line"; "accentual rhythm"
          [ant: quantitative, syllabic]