This is a point of view specifically associated in Yeats's late poetry particularly, but not only, old women, as he says on page 886, back in that General Introduction for My Work.

这一观点具体和叶芝晚期,的诗歌相联系,尤其但不仅仅是老女人，886页他说，在我的作品简介一书里。

耶鲁公开课 - 现代诗歌课程节选

And, one other thing that I failed to point out, if you take a look at the energies associated with the outermost electrons, in this case, lithium, you see it's 0.5 megajoules per mole, and then what's the 6.26?

还有另外一点我忘记提到的是，如果你观察离最外层,的电子的能量，在这种情况，对于锂，你可以得到，它是每摩尔0。5兆焦，那么6。26是什么呢？

麻省理工公开课 - 固态化学导论课程节选