Yeats seems to be insisting through Jane on the necessity of shattering experience to achieve unity of being, which Yeats imagines, again, as the union of opposites.

叶芝似乎通过珍妮坚持,认为经过破碎达到存在的统一,的必要性，所谓的统一，叶芝想象的还是相对立事物的统一。

耶鲁公开课 - 现代诗歌课程节选

The calorie density has changed because food is processed, so the calories in the fat and the sugar that can get squeezed into things made possible by technological changes has shifted things a lot.

食品经过加工,热量密度发生了变化,添加到食品中的脂肪和糖类,其卡路里含量可通过技术手段进行调整,进而造成很大不同

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选