Galileo appears in the simile but actually seems to be unnecessary for the general purposes of the comparison.

伽利略在这个明喻中出现了，但明显他对于,这个对比的整体目的来讲是可有可无的。

耶鲁公开课 - 弥尔顿课程节选

The other character that's mentioned in the poem is the boy's father, whose trees they are, the property owner, who also is absent.

这首诗里提到的其他人是他的爸爸，这些树就是他爸爸的，这些财产的拥有者，但也没有出现。

耶鲁公开课 - 现代诗歌课程节选

This guy--I don't know who he is but he seems to be on a lot of these things but the thing is you don't need to rely on him.

这个家伙，我不知道他是谁,不过他看起来在很多这类地方出现,但你不必依赖他做的表情。

耶鲁公开课 - 心理学导论课程节选