iambus

n (pl ~es or -bi / -baI; -baI/) (also iamb / 5aIAm, 5aIAmb; `aI9Am, `aI9Amb/) metrical foot in poetry consisting of one short or unstressed syllable followed by one long or stressed syllable 抑扬格（诗的韵步, 每一短音节或非重读音节接以一长音节或重读音节组成一步）.

hypothetically, hysterectomy, hysteria, hysteric, hysterical, hysterically, hysterics, I, I (also i), I'd, I'll, I'm, I've, I, i, i. e., I.D. card, i.e., I.Q., i/c, iambic, IBA, ibex, ibidem, ibis, IBM, ICBM, ice, ice age, ice cream, ice crevasse, ice dancing, ice hockey (US hockey), ice lolly (US Popsicle), ice-axe (also esp US ice-ax), ice-blue, ice-bound, ice-breaker, ice-cap, ice-cold, ice-cream,