In "The Song of the Wandering Aengus," I talked about the kind of flickering passion and the fire in the head that sends Angus out on his quest.

在流浪者安古斯之歌里,我讲了促使安古斯追逐的,燃烧的激情和头脑里的火焰。

耶鲁公开课 - 现代诗歌课程节选

So, when you think about resonance structures, some students tend to just get confused and be picturing this flickering back and forth.

那么，当大家想象共振结构的时候，有些同学很容易被弄晕,不停地来回想象。

麻省理工公开课 - 化学原理课程节选

A mule is not spending 1/2 of its time as a donkey, and 1/2 of its time as a horse, we don't see it flickering back and forth between the two, that's not what we see.

骡子并不是一半的时间是驴，另一半的时间是马，我们不会看到它在两者之间来回变化，这不是我们所看到的情况。

麻省理工公开课 - 化学原理课程节选