He draws a parallel between the nine lines of the poem with the nine rings of Hell, and notes that like the downward funnel of the rings of Hell, the poem narrows considerably in the last two lines.
他在这首诗的九行与地狱的九环之间画了一条平行线，并且注意到，就像地狱之环的向下漏斗一样，这首诗在最后两行显著变窄。