It's the sage and serious doctrine of virginity that concludes the speech. It's clear that something's happened between 1634 and 1637.

它是总结演说,有关童贞的智慧而严肃的教义,很明显，在1634年到1637年间发生过什么。

耶鲁公开课 - 弥尔顿课程节选

And we have a massive music venue in the north of England called the Sage,

在英格兰北部，我们有一个巨大的音乐场所叫做赛捷。

成功加入合唱团 - SpeakingMax英语口语达人

Interestingly, she refuses to unfold for her audience the sage and serious doctrine of virginity, but she does anticipate what that doctrine of virginity would look like if she were to unfold it.

有趣的是，她拒绝向观众们,揭开智慧而严肃的童贞教义，但是她预想了如果她揭开,那么童贞的教义将会变成哪样。

耶鲁公开课 - 弥尔顿课程节选