非重读的在发音或诗节中不重读的。

Unstressed or unaccented in pronunciation or poetic meter. Used of a word or syllable.

youdao

所以“his”是不重读的，其他的词就重读。

So "his" is unstressed, the other words are stressed.

youdao

在言语中不重读的英语元音大部分被弱化成无形的中元音。

Most English vowel sounds which are not given weight in speech become reduced to a rather formless central vowel.

youdao

Yes, this, too, is an utterly regular iambic pentameter line: unstressed syllable followed by a stressed syllable, five in a row.

是的，这是个典型的抑扬格五步格诗：,不重读的音节后面一个重读的音，五个成一行。

耶鲁公开课 - 现代诗歌课程节选