单词iambus
n.: （诗歌的）抑扬格网络: 短长格；五步抑扬格；音步抑扬格
（诗歌的）抑扬格:
a unit of sound in poetry consisting of one weak or short syllable followed by one strong or long syllable
【音韵学】短长格,抑扬格
〔文〕抑扬格