If there are two syllables in a step, the former is light and the latter is heavy, then this step is called iambic step, and its technical term is (iamb, iambic. ). Light reading is "inhibition" and stress is "promotion", so it is called iambic.
There are a large number of words in English, and the pronunciation stress falls on the second syllable, such as adore, excite, above, around, apparent, ideas, attack, supply, believe, return and so on. So it is convenient to write English poems in iambic. In other words, iambic rhymes conform to the rules of English pronunciation. So iambic is the most commonly used in English poetry, and 90% of English poetry is written in iambic.
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