长短长的韵脚
Cretic \Cre"tic\ (kr[=e]"t[i^]k), n. [L. Creticus (sc. pes foot), Gr. Kritiko`s (sc. poy`s foot), prop., a Cretan (metrical) foot.] (Gr. & Lat. Pros.) A poetic foot, composed of one short syllable between two long ones (- [crescent] -). --Bentley.