Everything that we had thought that Milton was telling us in the lyric present -- telling us directly, now -- suddenly gets shoved back into the narrative past: "thus sang the uncouth swain." The past tense is important there.

我们想过的弥尔顿在这首抒情诗里,直接告诉我们的所有事，现在，都突然在过去的旁白中一涌而现了：,“吟唱着粗鄙的青年人“，这里的过去时态很重要。

耶鲁公开课 - 弥尔顿课程节选

This would be good luck if you were long and now suddenly you got a huge return that you would not have thought was possible since you've never seen it before.

如果你长期持有这份投资,你就走运了,回报如此之高,你自己都没有料到,可能你也从来没有见过这种情况

耶鲁公开课 - 金融市场课程节选