He learned all there was To learn about not launching out too soon And so not carrying the tree away clear to the ground.

直到他再没有用武之地，他学会了,所有的花招：不立刻腾身跳出去,免得一下子把树干扳到了地面。

耶鲁公开课 - 现代诗歌课程节选

So we've got the root here of the--and then the trunk and then up above, this florid canopy would musically be the what?

我们来看看这里的根，然后是树干再往上，样华丽的树冠在音乐上被称为什么呢？

耶鲁公开课 - 聆听音乐课程节选

I'd like to go by climbing a birch tree, And climb black branches up a snow-white trunk toward heaven, till the tree could bear no more, But dipped its top and set me down again.

我真想去爬白桦树，沿着雪白的树干，爬上乌黑的树枝，爬向那天心，直到树身再支撑不住，树梢碰着地，把我放下来。

耶鲁公开课 - 现代诗歌课程节选

And these tree trunks were the chords and at the base of each of these chords at least conceptually, theoretically, is this thing called the root.

这些树干就是和弦，而每个和弦的底部，从理论上说，就是被称为根的东西。

耶鲁公开课 - 聆听音乐课程节选