Yeats develops this idea or develops another version of it in a somewhat earlier poem that's interesting in relation to this one.

叶芝进一步发展了这一想法,并在早期的一首诗里,写了另一个版本,那首与这首的关系很有趣。

耶鲁公开课 - 现代诗歌课程节选

This is one of the primary strategies that Milton develops, especially in the first two books of Paradise Lost, as a kind of defense against his dependence on classical literature.

这是弥尔顿发展出的早期策略之一，尤其是在《失乐园》的前两册书中,这似乎是在反驳他对古典文学的依赖。

耶鲁公开课 - 弥尔顿课程节选