He always kept his poise to the top branches, climbing carefully with the same pains you use to fill a cup up to the brim, and even above the brim.

他始终稳住身子，不摇不晃地，直到那高高的顶枝上----小心翼翼地,往上爬，那全神贯注的样儿，就像，把一杯水倒满，满到了杯口，甚至满过了边缘。

耶鲁公开课 - 现代诗歌课程节选

I'm swinging this cup of coffee around.

我拿着一杯咖啡晃来晃去。

耶鲁公开课 - 心理学导论课程节选