These are drives that the poem seems to be struggling to keep in check, or that Milton is representing the poem as struggling to keep in check, or to purge in some way.

这就是促使诗歌努力去抑制竞争，或者弥尔顿代表诗歌去抑制竞争，或以某些方式去净化。

耶鲁公开课 - 弥尔顿课程节选

So, Galileo here is struggling to get the proper visionary fix on the moon at a point in the day when there are no absolutes.

因此，伽利略在此是试图着要在没有绝对的时刻,得到月亮的方位。

耶鲁公开课 - 弥尔顿课程节选

I don't know if you know the story, but Labyrinth Books is independent, it's not a chain, and independent bookstores are trying-struggling--to survive.

不知道你们是否了解,"迷宫书店"家是独立书店 而非连锁书店,对于独立书店来说,生存下去非常艰难

耶鲁公开课 - 金融市场课程节选