Notice how very casual Yeats is in that second strophe, how self-consciously fantastic and speculative he is.

注意叶芝在第二节,是多么随意，多么自觉的神奇,多么敏锐。

耶鲁公开课 - 现代诗歌课程节选

And you can hear them together, Yeats moving from one to another with, oh, incredible speed and agility in that final strophe of the poem, on the next page.

而你可以听出所有，在诗的第三节中，叶芝转换得很快,很敏捷，翻到下一页。

耶鲁公开课 - 现代诗歌课程节选