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