tro·chee
noun/ˈtrəʊkiː/
/ˈtrəʊkiː/
(specialist)- a unit of sound in poetry consisting of one strong or long syllable followed by one weak or short syllable
（诗的）扬抑格，长短格 Word Originlate 16th cent.: via Latin from Greek trokhaios (pous) ‘running (foot)’, from trekhein ‘to run’.