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

It depends on” is useful when you're talking about one subject in relationship to another subject.

当你在谈论一个话题与另一个话题的关系时，“It depends on”句型是非常有用的一个句型。

It depends on 课堂 - SpeakingMax英语口语达人

Rather, the pauses are inserted by your mind as you already know where one word begins and another one ends.

相反,停顿只是由你的心理活动插入的,因为你已经知道了一个单词的开始,与另一个单词的结束在什么地方

耶鲁公开课 - 心理学导论课程节选

I said what hold the bonds together, what holds two atoms together is the attractive force we have between each electron and the other nucleus.

我说过什么将它们结合在一起，将两个原子结合在一起的是一个吸引力,其中一个原子中的电子与另一个原子中的原子核之间。

麻省理工公开课 - 化学原理课程节选