He doesn't name the swan, just as he doesn't name the "rough beast" in "The Second Coming."

他没说这天鹅叫什么，就如在《三贤》《第二次降临》,他也没说粗鄙的野兽的名字“

耶鲁公开课 - 现代诗歌课程节选

Now as I say, I made this calculation some years ago It doesn't really matter how inaccurate it's going to be As we'll see it's very rough but it makes the point ? How many people are there?

现在就像我说的，我很多年前做了这个计算,到底它有多不精确其实无所谓,我们会看到,这个计算很粗糙,但却给出了一个说明,有多少人？

耶鲁公开课 - 死亡课程节选