And so one of the things that needs to be explored here is why this poem is the last poem that Milton is not prepared to write.

这里需要研究的一点是,为什么这首是弥尔顿并未准备好就开始写的最后一首诗。

耶鲁公开课 - 弥尔顿课程节选

So, the idea itself was developed in the nicest form by Thorndike who explored how animals learn.

这个观点,是由探究动物如何学习的,桑代克所提出的。

耶鲁公开课 - 心理学导论课程节选